web/index.html

   1 <!DOCTYPE html>
   2 <html lang="en">
   3 <head>
   4         <title>netdata dashboard</title>
   5
   6         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   7         <meta charset="utf-8">
   8         <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
   9         <meta name="viewport" content="width=device-width, initial-scale=1">
  10         <meta name="apple-mobile-web-app-capable" content="yes">
  11         <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
  12         <meta name="author" content="costa@tsaousis.gr">
  13
  14         <link rel="shortcut icon" href="images/seo-performance-multi-size.ico">
  15
  16         <link rel="apple-touch-icon" href="images/seo-performance-72.png">
  17         <link rel="apple-touch-icon" sizes="72x72" href="images/seo-performance-72.png">
  18         <link rel="apple-touch-icon" sizes="114x114" href="images/seo-performance-114.png">
  19
  20         <link rel="icon" type="image/png" sizes="512x512" href="images/seo-performance-512.png">
  21         <link rel="icon" type="image/png" sizes="256x256" href="images/seo-performance-256.png">
  22         <link rel="icon" type="image/png" sizes="128x128" href="images/seo-performance-128.png">
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  26         <link rel="icon" type="image/png" sizes="24x24" href="images/seo-performance-24.png">
  27         <link rel="icon" type="image/png" sizes="16x16" href="images/seo-performance-16.png">
  28
  29         <style>
  30
  31         /* prevent body from hiding under the navbar */
  32         body {
  33                 padding-top: 50px;
  34         }
  35
  36         .modal-wide .modal-dialog {
  37                 width: 80%;
  38         }
  39
  40         /* fix # anchors scrolling under the navbar
  41            https://github.com/twbs/bootstrap/issues/1768#issuecomment-46519033
  42          */
  43         h1 {
  44                 position: relative;
  45                 z-index: -1;
  46         }
  47         h2 {
  48                 position: relative;
  49                 z-index: -2;
  50         }
  51         h1:before, h2:before {
  52                 display: block;
  53                 content: " ";
  54                 margin-top: -70px;
  55                 height: 70px;
  56                 visibility: hidden;
  57         }
  58
  59         .p {
  60                 display: block;
  61                 margin-top: 15px;
  62         }
  63
  64         .option-row,
  65         .option-control {
  66                 vertical-align: top;
  67                 padding: 10px;
  68                 padding-top: 30px;
  69                 padding-left: 30px;
  70         }
  71
  72         .option-info {
  73                 padding: 10px;
  74         }
  75
  76         .chart-message {
  77                 display: block;
  78                 margin-top: 10px;
  79         }
  80
  81         .container {
  82                 width: 90% !important;
  83         }
  84
  85         #masthead h1 {
  86                 /*font-size: 30px;*/
  87                 line-height: 1;
  88                 padding-top: 30px;
  89         }
  90
  91         #masthead .well {
  92                 margin-top:4%;
  93         }
  94
  95         /* fix the navbar shifting when a modal is open */
  96         /* https://github.com/twbs/bootstrap/issues/14040#issuecomment-159891033 */
  97         body.modal-open{
  98                 width: 100% !important;
  99                 padding-right: 0 !important;
 100 /*              overflow-y: scroll !important; */
 101 /*              position: fixed !important;*/
 102                 overflow: visible;
 103         }
 104
 105         /*
 106          * Side navigation
 107          *
 108          * Scrollspy and affixed enhanced navigation to highlight sections and secondary
 109          * sections of docs content.
 110          */
 111
 112         .affix {
 113                 position: static;
 114                 top: 70px !important;
 115                 /*width: 220px;*/
 116         }
 117
 118         .affix-top {
 119                 /*width: 220px;*/
 120         }
 121
 122         .dashboard-sidebar {
 123                 max-height: calc(100% - 70px) !important;
 124                 overflow-y: auto;
 125                 /*width: 220px !important;*/
 126         }
 127
 128         /* By default it's not affixed in mobile views, so undo that */
 129         .dashboard-sidebar.affix {
 130                 position: static;
 131         }
 132
 133         @media (min-width: 768px) {
 134                 .dashboard-sidebar {
 135                         padding-left: 20px;
 136                 }
 137         }
 138
 139         /* First level of nav */
 140         .dashboard-sidenav {
 141                 margin-top: 20px;
 142                 margin-bottom: 20px;
 143         }
 144
 145         /* All levels of nav */
 146         .dashboard-sidebar .nav > li > a {
 147                 display: block;
 148                 padding: 4px 20px;
 149                 font-size: 13px;
 150                 font-weight: 500;
 151                 color: #767676;
 152         }
 153         .dashboard-sidebar .nav > li > a:hover,
 154         .dashboard-sidebar .nav > li > a:focus {
 155                 padding-left: 19px;
 156                 color: #563d7c;
 157                 text-decoration: none;
 158                 background-color: transparent;
 159                 border-left: 1px solid #563d7c;
 160         }
 161         .dashboard-sidebar .nav > .active > a,
 162         .dashboard-sidebar .nav > .active:hover > a,
 163         .dashboard-sidebar .nav > .active:focus > a {
 164                 padding-left: 18px;
 165                 font-weight: bold;
 166                 color: #563d7c;
 167                 background-color: transparent;
 168                 border-left: 2px solid #563d7c;
 169         }
 170
 171         /* Nav: second level (shown on .active) */
 172         .dashboard-sidebar .nav .nav {
 173                 display: none; /* Hide by default, but at >768px, show it */
 174                 padding-bottom: 10px;
 175         }
 176         .dashboard-sidebar .nav .nav > li > a {
 177                 padding-top: 1px;
 178                 padding-bottom: 1px;
 179                 padding-left: 30px;
 180                 font-size: 12px;
 181                 font-weight: normal;
 182         }
 183         .dashboard-sidebar .nav .nav > li > a:hover,
 184         .dashboard-sidebar .nav .nav > li > a:focus {
 185                 padding-left: 29px;
 186         }
 187         .dashboard-sidebar .nav .nav > .active > a,
 188         .dashboard-sidebar .nav .nav > .active:hover > a,
 189         .dashboard-sidebar .nav .nav > .active:focus > a {
 190                 padding-left: 28px;
 191                 font-weight: 500;
 192         }
 193
 194         /* Back to top (hidden on mobile) */
 195         .back-to-top,
 196         .dashboard-theme-toggle {
 197                 display: none;
 198                 padding: 4px 10px;
 199                 margin-top: 10px;
 200                 margin-left: 10px;
 201                 font-size: 12px;
 202                 font-weight: 500;
 203                 color: #999;
 204         }
 205         .back-to-top:hover,
 206         .dashboard-theme-toggle:hover {
 207                 color: #563d7c;
 208                 text-decoration: none;
 209         }
 210         .dashboard-theme-toggle {
 211                 margin-top: 0;
 212         }
 213
 214         @media (min-width: 768px) {
 215                 .back-to-top,
 216                 .dashboard-theme-toggle {
 217                         display: block;
 218                 }
 219
 220                 /* Widen the fixed sidebar */
 221                 .dashboard-sidebar.affix,
 222                 .dashboard-sidebar.affix-top,
 223                 .dashboard-sidebar.affix-bottom {
 224                         width: 200px !important;
 225                 }
 226
 227                 .dashboard-sidebar.affix {
 228                         position: fixed; /* Undo the static from mobile first approach */
 229                         top: 20px;
 230                 }
 231
 232                 .dashboard-sidebar.affix-bottom {
 233                         position: absolute; /* Undo the static from mobile first approach */
 234                 }
 235
 236                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 237                 .dashboard-sidebar.affix .dashboard-sidenav {
 238                         margin-top: 0;
 239                         margin-bottom: 0;
 240                 }
 241         }
 242
 243         /* Show and affix the side nav when space allows it */
 244         @media (min-width: 992px) {
 245                 .dashboard-sidebar .nav > .active > ul {
 246                         display: block;
 247                 }
 248
 249                 /* Widen the fixed sidebar */
 250                 .dashboard-sidebar.affix,
 251                 .dashboard-sidebar.affix-top,
 252                 .dashboard-sidebar.affix-bottom {
 253                         width: 200px !important;
 254                 }
 255                 .dashboard-sidebar.affix {
 256                         position: fixed; /* Undo the static from mobile first approach */
 257                         top: 20px;
 258                 }
 259                 .dashboard-sidebar.affix-bottom {
 260                         position: absolute; /* Undo the static from mobile first approach */
 261                 }
 262                 .dashboard-sidebar.affix-bottom .dashboard-sidenav,
 263                 .dashboard-sidebar.affix .dashboard-sidenav {
 264                         margin-top: 0;
 265                         margin-bottom: 0;
 266                 }
 267         }
 268
 269         @media (min-width: 1200px) {
 270                 /* Widen the fixed sidebar again */
 271                 .dashboard-sidebar.affix-bottom,
 272                 .dashboard-sidebar.affix-top,
 273                 .dashboard-sidebar.affix {
 274                         width: 263px;
 275                 }
 276         }
 277         </style>
 278
 279         <!-- you can set your netdata server globally, by ucommenting this -->
 280         <!-- you can also give a different server per chart, with the attribute: data-host="http://netdata.server:19999" -->
 281         <!-- <script> netdataServer = "http://box:19999"; </script> -->
 282
 283         <!-- check which theme to use -->
 284         <script>
 285                 function loadLocalStorage(name) {
 286                         var ret = null;
 287
 288                         try {
 289                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object')
 290                                         ret = localStorage.getItem(name);
 291                         }
 292                         catch(error) {
 293                                 ;
 294                         }
 295
 296                         if(typeof ret === 'undefined' || ret === null)
 297                                 return null;
 298
 299                         return ret;
 300                 }
 301
 302                 function saveLocalStorage(name, value) {
 303                         try {
 304                                 if(typeof Storage !== "undefined" && typeof localStorage === 'object') {
 305                                         localStorage.setItem(name, value.toString());
 306                                         return true;
 307                                 }
 308                         }
 309                         catch(error) {
 310                                 ;
 311                         }
 312
 313                         return false;
 314                 }
 315
 316                 function getTheme(def) {
 317                         var ret = loadLocalStorage('netdataTheme');
 318                         if(typeof ret === 'undefined' || ret === null || ret === 'undefined')
 319                                 return def;
 320                         else
 321                                 return ret;
 322                 }
 323                 var netdataTheme = getTheme('slate');
 324
 325                 function setTheme(theme) {
 326                         if(theme === netdataTheme) return false;
 327
 328                         return saveLocalStorage('netdataTheme', theme);
 329                 }
 330         </script>
 331
 332         <!-- load the dashboard manager - it will do the rest -->
 333         <script type="text/javascript" src="dashboard.js?v34"></script>
 334 </head>
 335
 336 <body data-spy="scroll" data-target="#sidebar">
 337         <nav class="navbar navbar-default navbar-fixed-top" role="banner">
 338                 <div class="container">
 339                         <div class="navbar-header">
 340                                 <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".navbar-collapse">
 341                                         <span class="sr-only">Toggle navigation</span>
 342                                         <span class="icon-bar"></span>
 343                                         <span class="icon-bar"></span>
 344                                         <span class="icon-bar"></span>
 345                                 </button>
 346                                 <a href="/" class="navbar-brand" id="hostname">netdata</a>
 347                         </div>
 348                         <nav id="demosites_nav" class="collapse navbar-collapse navbar-left" role="navigation">
 349                                 <ul class="nav navbar-nav">
 350                                         <li class="dropdown">
 351                                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" id="current_view">demo sites <strong class="caret"></strong></a>
 352                                                 <ul class="dropdown-menu scrollable-menu inpagemenu" role="menu">
 353                                                         <li id="demo_eu"><a href="//netdata.firehol.org?nowelcome">EU - London (DigitalOcean.com)</a></li>
 354                                                         <li id="demo_us"><a href="//netdata2.firehol.org?nowelcome">US - Atlanta (CDN77.com)</a></li>
 355                                                         <li role="separator" class="divider"></li>
 356                                                         <li id="demo_tv"><a href="tv.html">TV Dashboard for 2 servers</a></li>
 357                                                         <li id="demosites"><a href="demosites.html">Dashboard for monitoring netdata demo sites</a></li>
 358                                                 </ul>
 359                                         </li>
 360                                 </ul>
 361                         </nav>
 362                         <nav class="collapse navbar-collapse navbar-right" role="navigation">
 363                                 <ul class="nav navbar-nav">
 364                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 365                                         <li><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 366                                         <li id="updateButton"><a href="#" class="btn" data-toggle="modal" data-target="#updateModal"><i class="fa fa-cloud-download"></i> update</a></li>
 367 <!--                                    <li><a href="old/" class="btn" target="_blank"><i class="fa fa-step-backward"></i> old dashboard</a></li> -->
 368                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 369 <!--                                    <li><a href="#sec">Visualize</a></li>
 370                                         <li><a href="#sec">Prototype</a></li>
 371 -->                             </ul>
 372                         </nav>
 373                 </div>
 374         </nav>
 375
 376         <div id="masthead" style="display: none;">
 377                 <div class="container">
 378                         <div class="row">
 379                                 <div class="col-md-7">
 380                                         <h1>Netdata
 381                                                 <p class="lead">Real-time performance monitoring, in the greatest possible detail</p>
 382                                         </h1>
 383                                 </div>
 384                                 <div class="col-md-5">
 385                                         <div class="well well-lg">
 386                                                 <div class="row">
 387                                                 <div class="col-md-6">
 388                                                         <b>Drag</b> charts to pan.
 389                                                         <b>Shift + wheel</b> on them, to zoom in and out.
 390                                                         <b>Double-click</b> on them, to reset.
 391                                                         <b>Hover</b> on them too!
 392                                                         </div>
 393                                                 <div class="col-md-6">
 394                                                         <div data-netdata="system.intr" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-dygraph-type="line" data-dygraph-strokewidth="3" data-dygraph-smooth="true" data-dygraph-highlightcirclesize="6" data-after="-90" data-height="60px" data-colors="#C66"></div>
 395                                                         </div>
 396                                                 </div>
 397                                         </div>
 398                                 </div>
 399                         </div>
 400                 </div>
 401         </div>
 402
 403         <div class="container">
 404                 <div class="row">
 405                         <div class="col-md-10" role="main">
 406                                 <div id="charts_div"></div>
 407                         </div>
 408                         <div class="col-md-2" role="complementary">
 409                                 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
 410                         </div>
 411                 </div>
 412         </div>
 413
 414         <div id="footer" class="container" style="display: none;">
 415                 <div class="row">
 416                         <div class="col-md-10" role="main">
 417                                 <div class="p">
 418                                         <big><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></big><br/>
 419                                         <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
 420                                         Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
 421                                 </div>
 422                                 <div class="p">
 423                                         <small>
 424                                                 <a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a> re-distributes these software tools:
 425
 426                                                 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
 427                                                 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
 428
 429                                                 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
 430                                                 <i class="fa fa-copyright"></i> Copyright 2009-2012, Splunk Inc., <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">New BSD License</a>
 431
 432                                                 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
 433                                                 <i class="fa fa-copyright"></i> Copyright 2009-2015, Ben Pickles, <a href="https://github.com/benpickles/peity/blob/master/MIT-LICENCE" target="_blank">MIT License</a>
 434
 435                                                 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
 436                                                 <i class="fa fa-copyright"></i> Copyright 2013, Robert Fleischmann, <a href="https://github.com/rendro/easy-pie-chart/blob/master/LICENSE" target="_blank">MIT License</a>
 437
 438                                                 <i class="fa fa-circle"></i> <a href="http://bernii.github.io/gauge.js/" target="_blank">Gauge.js</a> web chart library,
 439                                                 <i class="fa fa-copyright"></i> Copyright, Bernard Kobos, <a href="http://bernii.github.io/gauge.js/" target="_blank">MIT License</a>
 440
 441                                                 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
 442                                                 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
 443
 444                                                 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
 445                                                 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
 446
 447                                                 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
 448                                                 <i class="fa fa-copyright"></i> Copyright (c) 2011-2014 Min Hur, The New York Times Company, <a href="https://github.com/minhur/bootstrap-toggle/blob/master/LICENSE" target="_blank">MIT License</a>
 449
 450                                                 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
 451                                                 <i class="fa fa-copyright"></i> Copyright 2012, James Florentino, <a href="https://github.com/jamesflorentino/nanoScrollerJS/blob/master/LICENSE" target="_blank">MIT License</a>
 452
 453                                                 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
 454                                                 <i class="fa fa-copyright"></i> Copyright Marc J. Schmidt, <a href="https://github.com/marcj/css-element-queries/blob/master/LICENSE" target="_blank">MIT License</a>
 455
 456                                                 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
 457                                                 <i class="fa fa-copyright"></i> Created by Dave Gandy, Font: <a href="http://scripts.sil.org/OFL" target="_blank">SIL OFL 1.1 License</a>, CSS: <a href="http://opensource.org/licenses/mit-license.html" target="_blank">MIT License</a>
 458
 459                                                 <i class="fa fa-circle"></i> <a href="http://www.iconsdb.com/soylent-red-icons/seo-performance-icon.html" target="_blank">IconsDB.com Icons</a>, Icons provided as CC0 1.0 Universal (CC0 1.0) Public Domain Dedication.
 460
 461                                                 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
 462                                                 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
 463
 464                                                 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
 465                                                 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
 466
 467                                                 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
 468                                                 <i class="fa fa-copyright"></i> Copyright 2013, Masayuki Tanaka, <a href="https://github.com/masayuki0812/c3/blob/master/LICENSE" target="_blank">MIT License</a>
 469
 470                                                 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
 471                                                 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
 472
 473                                                 <i class="fa fa-circle"></i> <a href="https://github.com/broofa/node-int64" target="_blank">node-int64</a>,
 474                                                 <i class="fa fa-copyright"></i> Copyright 2014, Robert Kieffer, <a href="https://github.com/broofa/node-int64/blob/master/LICENSE" target="_blank">MIT License</a>
 475
 476                                         </small>
 477                                 </div>
 478                         </div>
 479                 </div>
 480         </div>
 481
 482         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 483                 <div class="modal-dialog modal-lg" role="document">
 484                         <div class="modal-content">
 485                                 <div class="modal-header">
 486                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 487                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
 488                                 </div>
 489                                 <div class="modal-body">
 490                                                 <div class="p">
 491                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> is the fastest way to visualize metrics. It is a resource efficient, highly optimized system for collecting and visualizing any type of real-time time series data, from CPU usage, disk activity, SQL queries, API calls, web site visitors, etc.
 492                                                 </div>
 493                                                 <div class="p">
 494                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> tries to visualize the truth of <b>now</b>, in its <b>greatest detail</b>, so that you can get insights of what is happening now and what just happened, on your systems and applications.
 495                                                 </div>
 496                                                 <div class="p">
 497                                                 To make a chart in <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b>, you just need a <b>number</b>. Just a number you can read somehow. <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> will turn this number to a real time, interactive, web chart. For collecting these numbers, it supports <a href="https://github.com/firehol/netdata/wiki/External-Plugins" target="_blank">external plugins</a>, even <a href="https://github.com/firehol/netdata/wiki/General-Info---charts.d" target="_blank">shell</a> or <a href="https://github.com/firehol/netdata/wiki/General-Info---charts.d" target="_blank">node.js</a> plugins. Any computer program, in any language, that can print a few lines of text on its standard output, can be a netdata data collector.
 498                                                 </div>
 499                                                 <div class="p">
 500                                                 <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> can embed charts everywhere, like this one <div data-netdata="system.cpu" data-dimensions="system" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-show-value-of-system-at="system.cpu.system.modal.1"></div> (my CPU system usage which is <span id="system.cpu.system.modal.1" style="display: inline-block; width: 40px; text-align: right;"></span>%),
 501                                                 or this one <div data-netdata="ipv4.tcppackets" data-dimensions="received" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-show-value-of-received-at="ipv4.tcppackets.received.modal.1"></div> (my IPv4 received TCP packets, which are <span id="ipv4.tcppackets.received.modal.1" style="display: inline-block; width: 60px; text-align: right;"></span>/second).
 502                                                 </div>
 503                                                 <div class="p">
 504                                                 You can have <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> charts on your site too. Just give it a <code>div</code> and a real time chart, zoomable and draggable will appear (try it even on these tiny ones - <b>drag</b> them to pan horizontally, <b>shift + drag</b> to zoom in, on <b>chrome shift + mouse wheel</b> to zoom in/out, <b>double click</b> on them to reset them - don't be afraid of <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></b> performance - <a href="https://github.com/firehol/netdata/wiki/Performance" target="_blank">a raspberry pi 2 can sustain 300 charts updates per second</a>!).
 505                                                 </div>
 506                                                 <div class="p">
 507                                                 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
 508                                                 </div>
 509                                 </div>
 510                                 <div class="modal-footer">
 511                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 512                                 </div>
 513                         </div>
 514                 </div>
 515         </div>
 516
 517         <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
 518                 <div class="modal-dialog modal-lg" role="document">
 519                         <div class="modal-content">
 520                                 <div class="modal-header">
 521                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 522                                         <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
 523                                 </div>
 524                                 <div class="modal-body">
 525
 526                                         <h4>Dygraphs (line, area and stacked area charts)</h4>
 527
 528                                         <!-- Nav tabs -->
 529                                         <ul class="nav nav-tabs" role="tablist">
 530                                                 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
 531                                                 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
 532                                         </ul>
 533
 534                                         <!-- Tab panes -->
 535                                         <div class="tab-content">
 536                                                 <div role="tabpanel" class="tab-pane active" id="help_mouse">
 537                                                         <div class="p">
 538                                                                 <h4>Mouse Over / Hover</h4>
 539                                                                 Mouse over on a chart to show, at its legend, the values for the timestamp under the mouse (the chart will also highlight the point at the chart).
 540                                                                 <br/>
 541                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 542                                                         </div>
 543                                                         <hr/>
 544                                                         <div class="p">
 545                                                                 <h4>Drag Chart Contents</h4>
 546                                                                 Drag the contents of a chart to pan it horizontally.
 547                                                                 <br/>
 548                                                                 All the charts will follow soon after you let the chart alone (this little delay is by design: it speeds up your browser and lets you focus on what you are exploring).
 549                                                                 <br/>
 550                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
 551                                                         </div>
 552                                                         <hr/>
 553                                                         <div class="p">
 554                                                                 <h4>Double Click</h4>
 555                                                                 Double Click a chart to reset all the charts to their default auto-refreshing state.
 556                                                         </div>
 557                                                         <hr/>
 558                                                         <div class="p">
 559                                                                 <h4>SHIFT + Drag</h4>
 560                                                                 While pressing the shift key, click on the contents of a chart and move the mouse to select an area, to zoom in. The other charts will follow too. Zooming is performed in two phases:
 561                                                                 <ul>
 562                                                                         <li>The already loaded chart contents are zoomed (low resolution)</li>
 563                                                                         <li>New data are transferred from the netdata server, to refresh the chart with possibly more detail.</li>
 564                                                                 </ul>
 565                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 566                                                         </div>
 567                                                         <hr/>
 568                                                         <div class="p">
 569                                                                 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
 570                                                                 While pressing the shift key and the mouse pointer is over the contents of a chart, scroll the mouse wheel to zoom in or out. This kind of zooming is aligned to center below the mouse pointer. The other charts will follow too.
 571                                                                 <br/>
 572                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 573                                                         </div>
 574                                                         <hr/>
 575                                                         <div class="p">
 576                                                                 <h4>Legend Operations</h4>
 577                                                                 Click on the label or value of a dimension, will select / un-select this dimension.
 578                                                                 <br/>
 579                                                                 You can press any of the SHIFT or CONTROL keys and then click on legend labels or values, to select / un-select multiple dimensions.
 580                                                         </div>
 581                                                 </div>
 582                                                 <div role="tabpanel" class="tab-pane" id="help_touch">
 583                                                         <div class="p">
 584                                                                 <h4>Single Tap</h4>
 585                                                                 Single Tap on the contents of a chart to show, at its legend, the values for the timestamp tapped (the chart will also highlight the point at the chart).
 586                                                                 <br/>
 587                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 588                                                         </div>
 589                                                         <hr/>
 590                                                         <div class="p">
 591                                                                 <h4>Drag Chart Contents</h4>
 592                                                                 Touch and Drag the contents of a chart to pan it horizontally.
 593                                                                 <br/>
 594                                                                 All the charts will follow soon after you let the chart alone (this little delay is by design: it speeds up your browser and lets you focus on what you are exploring).
 595                                                                 <br/>
 596                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
 597                                                         </div>
 598                                                         <hr/>
 599                                                         <div class="p">
 600                                                                 <h4>Double Tap</h4>
 601                                                                 Double tap a chart to reset all the charts to their default auto-refreshing state.
 602                                                         </div>
 603                                                         <hr/>
 604                                                         <div class="p">
 605                                                                 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
 606                                                                 With two fingers, zoom in or out.
 607                                                                 <br/>
 608                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 609                                                         </div>
 610                                                         <hr/>
 611                                                         <div class="p">
 612                                                                 <h4>Legend Operations</h4>
 613                                                                 Tap on the label or value of a dimension, will select / un-select this dimension.
 614                                                         </div>
 615                                                 </div>
 616                                         </div>
 617                                 </div>
 618                                 <div class="modal-footer">
 619                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 620                                 </div>
 621                         </div>
 622                 </div>
 623         </div>
 624
 625         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 626                 <div class="modal-dialog modal-lg" role="document">
 627                         <div class="modal-content">
 628                                 <div class="modal-header">
 629                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 630                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 631                                 </div>
 632                                 <div class="modal-body">
 633                                         <center>
 634                                                 <small style="color: #BBBBBB;">These are browser settings. Each viewer has its own. They do not affect the operation of your netdata server.
 635                                                 <br/>
 636                                                 Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 637                                                 <br/>
 638                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="resetDashboardOptions(); return false;">here</a>.</small>
 639                                         </center>
 640                                         <div style="padding: 10px;"></div>
 641
 642                                         <!-- Nav tabs -->
 643                                         <ul class="nav nav-tabs" role="tablist">
 644                                                 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
 645                                                 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
 646                                                 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
 647                                         </ul>
 648
 649                                         <!-- Tab panes -->
 650                                         <div class="tab-content">
 651                                                 <div role="tabpanel" class="tab-pane active" id="settings_performance">
 652                                                         <form id="optionsForm1" method="get" class="form-horizontal">
 653                                                                 <div class="form-group">
 654                                                                         <table>
 655                                                                         <tr class="option-row">
 656                                                                                 <td class="option-control"><input id="stop_updates_when_focus_is_lost" type="checkbox" checked data-toggle="toggle" data-offstyle="danger" data-onstyle="success" data-on="On Focus" data-off="Always" data-width="110px"></td>
 657                                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 658                                                                                         <small>When set to <b>On Focus</b>, the charts will stop being updated if the page / tab does not have the focus of the user. When set to <b>Always</b>, the charts will always be refreshed. Set it to <b>On Focus</b> it to lower the CPU requirements of the browser (and extend the battery of laptops and tablets) when this page does not have your focus. Set to <b>Always</b> to work on another window (i.e. change the settings of something) and have the charts auto-refresh in this window.</small>
 659                                                                                 </td>
 660                                                                                 </tr>
 661                                                                         <tr class="option-row">
 662                                                                                 <td class="option-control">
 663                                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 664                                                                                 </td>
 665                                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 666                                                                                         <small>When set to <b>Non Zero</b>, dimensions that have all their values (within the current view) set to zero will not be transferred from the netdata server (except if all dimensions of the chart are zero, in which case this setting does nothing - all dimensions are transferred and shown). When set to <b>All</b>, all dimensions will always be shown. Set it to <b>Non Zero</b> to lower the data transferred between netdata and your browser, lower the CPU requirements of your browser (fewer lines to draw) and increase the focus on the legends (fewer entries at the legends).</small>
 667                                                                                 </td>
 668                                                                                 </tr>
 669                                                                         <tr class="option-row">
 670                                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 671                                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 672                                                                                         <small>When set to <b>Destroy</b>, charts that are not in the current viewport of the browser (are above, or below the visible area of the page), will be destroyed and re-created if and when they become visible again. When set to <b>Hide</b>, the not-visible charts will be just hidden, to simplify the DOM and speed up your browser. Set it to <b>Destroy</b>, to lower the memory requirements of your browser. Set it to <b>Hide</b> for smoother page scrolling.</small>
 673                                                                                 </td>
 674                                                                                 </tr>
 675                                                                         </table>
 676                                                                 </div>
 677                                                         </form>
 678                                                 </div>
 679                                                 <div role="tabpanel" class="tab-pane" id="settings_sync">
 680                                                         <form id="optionsForm2" method="get" class="form-horizontal">
 681                                                                 <div class="form-group">
 682                                                                         <table>
 683                                                                         <tr class="option-row">
 684                                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequential" data-width="110px"></td>
 685                                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 686                                                                                         <small>When set to <b>parallel</b>, visible charts are refreshed in parallel (all queries are sent to netdata server in parallel) and are rendered asynchronously. When set to <b>sequential</b> charts are refreshed one after another. Set it to parallel if your browser can cope with it (most modern browsers do), set it to sequential if you work on an older/slower computer.</small>
 687                                                                                 </td>
 688                                                                                 </tr>
 689                                                                         <tr class="option-row" id="concurrent_refreshes_row">
 690                                                                                 <td class="option-control"></td>
 691                                                                                 <td class="option-info">
 692                                                                                         <table>
 693                                                                                         <tr class="option-row">
 694                                                                                         <td class="option-control">
 695                                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 696                                                                                         </td>
 697                                                                                         <td class="option-info">
 698                                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 699                                                                                         <small>When set to <b>Resync</b>, the dashboard will attempt to re-synchronize all the charts so that they are refreshed concurrently. When set to <b>Best Effort</b>, each chart may be refreshed with a little time difference to the others. Normally, the dashboard starts refreshing them in parallel, but depending on the speed of your computer and the network latencies, charts start having a slight time difference. Setting this to <b>Resync</b> will attempt to re-synchronize the charts on every update. Setting it to <b>Best Effort</b> may lower the pressure on your browser and the network.</small>
 700                                                                                         </td>
 701                                                                                         </tr>
 702                                                                                         </table>
 703                                                                                 </td>
 704                                                                                 </tr>
 705                                                                         <tr class="option-row">
 706                                                                                 <td class="option-control"><input id="sync_selection" type="checkbox" checked data-toggle="toggle" data-on="Sync" data-off="Don't Sync" data-onstyle="success" data-offstyle="danger" data-width="110px"></td>
 707                                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 708                                                                                         <small>When enabled, a selection on one chart will automatically select the same time on all other visible charts and the legends of all visible charts will be updated to show the selected values. When disabled, only the chart getting the user's attention will be selected. Enable it to get better insights of the data. Disable it if you are on a very slow computer that cannot actually do it.</small>
 709                                                                                 </td>
 710                                                                                 </tr>
 711                                                                         <tr class="option-row">
 712                                                                                 <td class="option-control"><input id="sync_pan_and_zoom" type="checkbox" checked data-toggle="toggle"  data-on="Sync" data-off="Don't Sync" data-onstyle="success" data-offstyle="danger" data-width="110px"></td>
 713                                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 714                                                                                         <small>When enabled, pan and zoom operations on a chart will be replicated to all charts (even the ones that are not currently visible - of course only when they will become visible). When disabled, pan and zoom operations will not be propagated to other charts.</small>
 715                                                                                 </td>
 716                                                                                 </tr>
 717                                                                         </table>
 718                                                                 </div>
 719                                                         </form>
 720                                                 </div>
 721                                                 <div role="tabpanel" class="tab-pane" id="settings_visual">
 722                                                         <form id="optionsForm3" method="get" class="form-horizontal">
 723                                                                 <div class="form-group">
 724                                                                         <table>
 725                                                                         <tr class="option-row">
 726                                                                                 <td class="option-control"><input id="netdata_theme_control" type="checkbox" checked data-toggle="toggle" data-offstyle="danger" data-onstyle="success" data-on="Dark" data-off="White" data-width="110px"></td>
 727                                                                                 <td class="option-info"><strong>Which theme to use?</strong><br/>
 728                                                                                         <small>Netdata comes with two themes: <b>Dark</b> (the default) and <b>White</b>.
 729                                                                                         <br/>
 730                                                                                         <b>Switching this will reload the dashboard</b>.
 731                                                                                         </small>
 732                                                                                 </td>
 733                                                                                 </tr>
 734                                                                         <tr class="option-row">
 735                                                                                 <td class="option-control"><input id="show_help" type="checkbox" checked data-toggle="toggle" data-on="Help Me" data-off="No Help" data-width="110px"></td>
 736                                                                                 <td class="option-info"><strong>Do you need help?</strong><br/>
 737                                                                                         <small>Netdata can show some help in some areas to help you use the dashboard. If all these balloons bother you, disable them using this switch.
 738                                                                                         <br/>
 739                                                                                         <b>Switching this will reload the dashboard</b>.
 740                                                                                         </small>
 741                                                                                 </td>
 742                                                                                 </tr>
 743                                                                         <tr class="option-row">
 744                                                                                 <td class="option-control"><input id="pan_and_zoom_data_padding" type="checkbox" checked data-toggle="toggle"  data-on="Pad" data-off="Don't Pad" data-width="110px"></td>
 745                                                                                 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
 746                                                                                         <small>When set to <b>Pad</b> the charts will be padded with more data, both before and after the visible area, thus giving the impression the whole database is loaded. This padding will happen only after the first pan or zoom operation on the chart (initially all charts have only the visible data). When set to <b>Don't Pad</b> only the visible data will be transfered from the netdata server, even after the first pan and zoom operation.</small>
 747                                                                                 </td>
 748                                                                                 </tr>
 749                                                                         <tr class="option-row">
 750                                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 751                                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 752                                                                                         <small>When set to <b>Smooth</b> the charts libraries that support it, will plot smooth curves instead of simple straight lines to connect the points.
 753                                                                                         <br/>
 754                                                                                         Keep in mind <a href="http://dygraphs.com" target="_blank">dygraphs</a>, the main charting library in netdata dashboards, can only smooth line charts. It cannot smooth area or stacked charts. When set to <b>Rough</b>, this setting can lower the CPU resources consumed by your browser.</small>
 755                                                                                 </td>
 756                                                                                 </tr>
 757                                                                         </table>
 758                                                                 </div>
 759                                                         </form>
 760                                                 </div>
 761                                         </div>
 762                                 </div>
 763                                 <div class="modal-footer">
 764                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 765                                 </div>
 766                         </div>
 767                 </div>
 768         </div>
 769
 770
 771         <div class="modal fade" id="updateModal" tabindex="-1" role="dialog" aria-labelledby="updateModalLabel">
 772                 <div class="modal-dialog" role="document">
 773                         <div class="modal-content">
 774                                 <div class="modal-header">
 775                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 776                                         <h4 class="modal-title" id="updateModalLabel">Update Check</h4>
 777                                 </div>
 778                                 <div class="modal-body">
 779                                         Your netdata version: <b><code><span id="netdataVersion">Unknown</span></code></b>
 780                                         <br/>
 781                                         <div style="padding: 10px;"></div>
 782                                         <div id="versionCheckLog">Not checked yet. Please press the Check Now button.</div>
 783                                 </div>
 784                                 <div class="modal-footer">
 785                                         <a href="#" onclick="notifyForUpdate(true);" type="button" class="btn btn-default">Check Now</a>
 786                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 787                                 </div>
 788                         </div>
 789                 </div>
 790         </div>
 791
 792 <script>
 793
 794 var this_is_demo = null;
 795 function isdemo() {
 796         if(this_is_demo !== null) return this_is_demo;
 797         this_is_demo = false;
 798
 799         try {
 800                 if(typeof document.location.hostname === 'string') {
 801                         if(document.location.hostname === 'netdata.firehol.org') {
 802                                 document.getElementById("demo_eu").className = "active";
 803                                 this_is_demo = true;
 804                         }
 805                         else if(document.location.hostname === 'netdata2.firehol.org') {
 806                                 document.getElementById("demo_us").className = "active";
 807                                 this_is_demo = true;
 808                         }
 809                 }
 810
 811                 if(!this_is_demo)
 812                         document.getElementById("demosites_nav").style.visibility = "hidden";
 813         }
 814         catch(error) {
 815                 ;
 816         }
 817
 818         return this_is_demo;
 819 }
 820
 821 if(isdemo()) {
 822         document.getElementById('masthead').style.display = 'block';
 823 }
 824
 825 var options = {
 826         sparklines_registry: {},
 827         submenu_names: {},
 828         data: null,
 829         hostname: 'netdata_server', // will be overwritten by the netdata server
 830         categories: new Array(),
 831         categories_idx: {},
 832         families: new Array(),
 833         families_idx: {},
 834
 835         chartsPerRow: 0,
 836         chartsMinWidth: 1450,
 837         chartsHeight: 180,
 838         sparklinesHeight: 60
 839 };
 840
 841 // generate a sparkline
 842 // used in the documentation
 843 function sparkline(chart, dimension, units) {
 844         var key = chart + '.' + dimension;
 845
 846         if(typeof units === 'undefined')
 847                 units = '';
 848
 849         if(typeof options.sparklines_registry[key] === 'undefined')
 850                 options.sparklines_registry[key] = { count: 1 };
 851         else
 852                 options.sparklines_registry[key].count++;
 853
 854         key = key + '.' + options.sparklines_registry[key].count;
 855
 856         var h = '<div data-netdata="' + chart + '" data-after="-120" data-width="25%" data-height="15px" data-chart-library="dygraph" data-dygraph-theme="sparkline" data-dimensions="' + dimension + '" data-show-value-of-' + dimension + '-at="' + key + '"></div> (<span id="' + key + '" style="display: inline-block; min-width: 50px; text-align: right;">X</span>' + units + ')';
 857
 858         return h;
 859 }
 860
 861 function chartsPerRow(total) {
 862         if(options.chartsPerRow === 0) {
 863                 width = Math.floor(total / options.chartsMinWidth);
 864                 if(width === 0) width = 1;
 865                 return width;
 866         }
 867         else return options.chartsPerRow;
 868 }
 869
 870 function prioritySort(a, b) {
 871         if(a.priority < b.priority) return -1;
 872         if(a.priority > b.priority) return 1;
 873         if(a.name < b.name) return -1;
 874         return 1;
 875 }
 876
 877 function sortObjectByPriority(object) {
 878         var idx = {};
 879         var sorted = new Array();
 880
 881         for(var i in object) {
 882                 if(typeof idx[i] === 'undefined') {
 883                         idx[i] = object[i];
 884                         sorted.push(i);
 885                 }
 886         }
 887
 888         sorted.sort(function(a, b) {
 889                 if(idx[a].priority < idx[b].priority) return -1;
 890                 if(idx[a].priority > idx[b].priority) return 1;
 891                 if(a < b) return -1;
 892                 return 1;
 893         });
 894
 895         return sorted;
 896 }
 897
 898 // ----------------------------------------------------------------------------
 899
 900 function gaugeChart(title, width, dimensions, colors) {
 901         if(typeof colors === 'undefined')
 902                 colors = '';
 903
 904         if(typeof dimensions === 'undefined')
 905                 dimensions = '';
 906
 907         return '<div data-netdata="CHART_UNIQUE_ID"'
 908                                                         + ' data-dimensions="' + dimensions + '"'
 909                                                         + ' data-chart-library="gauge"'
 910                                                         + ' data-gauge-adjust="width"'
 911                                                         + ' data-title="' + title + '"'
 912                                                         + ' data-width="' + width + '"'
 913                                                         + ' data-before="0"'
 914                                                         + ' data-after="-CHART_DURATION"'
 915                                                         + ' data-points="CHART_DURATION"'
 916                                                         + ' data-colors="' + colors + '"'
 917                                                         + ' role="application"></div>';
 918 }
 919
 920 // ----------------------------------------------------------------------------
 921
 922 var menuData = {
 923         'system': {
 924                 title: 'System Overview',
 925                 info: 'Overview of the key system metrics.'
 926         },
 927
 928         'ap': {
 929                 title: 'Access Points',
 930                 info: undefined
 931         },
 932
 933         'tc': {
 934                 title: 'Quality of Service',
 935                 info: 'Netdata collects and visualizes tc class utilization using its <a href="https://github.com/firehol/netdata/blob/master/plugins.d/tc-qos-helper.sh" target="_blank">tc-helper plugin</a>. If you also use <a href="http://firehol.org/#fireqos" target="_blank">FireQOS</a> for setting up QoS, netdata automatically collects interface and class names. If your QoS configuration includes overheads calculation, the values shown here will include these overheads (the total bandwidth for the same interface as reported in the Network Interfaces section, will be lower than the total bandwidth reported here). Also, data collection may have a slight time difference compared to the interface (QoS data collection is implemented with a BASH script, so a shift in data collection of a few milliseconds should be justified).'
 936         },
 937
 938         'net': {
 939                 title: 'Network Interfaces',
 940                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
 941         },
 942
 943         'ipv4': {
 944                 title: 'IPv4 Networking',
 945                 info: undefined
 946         },
 947
 948         'ipv6': {
 949                 title: 'IPv6 Networking',
 950                 info: undefined
 951         },
 952
 953         'ipvs': {
 954                 title: 'IP Virtual Server',
 955                 info: undefined
 956         },
 957
 958         'netfilter': {
 959                 title: 'Firewall (netfilter)',
 960                 info: undefined
 961         },
 962
 963         'cpu': {
 964                 title: 'CPUs',
 965                 info: undefined
 966         },
 967
 968         'mem': {
 969                 title: 'Memory',
 970                 info: undefined
 971         },
 972
 973         'disk': {
 974                 title: 'Disks',
 975                 info: undefined
 976         },
 977
 978         'sensors': {
 979                 title: 'Sensors',
 980                 info: undefined
 981         },
 982
 983         'nfsd': {
 984                 title: 'File Server (nfsd)',
 985                 info: undefined
 986         },
 987
 988         'apps': {
 989                 title: 'Applications',
 990                 info: 'Per application statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics for applications of interest, defined in <code>/etc/netdata/apps_groups.conf</code> (the default is <a href="https://github.com/firehol/netdata/blob/master/conf.d/apps_groups.conf" target="_blank">here</a>). The plugin internally builds a process tree (much like <code>ps fax</code> does), and groups processes together (evaluating both child and parent processes) so that the result is always a chart with a predefined set of dimensions (of course, only application groups found running are reported).<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
 991                 height: 1.5
 992         },
 993
 994         'users': {
 995                 title: 'Users',
 996                 info: 'Per user statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user.<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
 997                 height: 1.5
 998         },
 999
1000         'groups': {
1001                 title: 'User Groups',
1002                 info: 'Per user group statistics are collected using netdata\'s <code>apps.plugin</code>. This plugin walks through the entire <code>/proc</code> filesystem and aggregates statistics per user group.<br/><b>IMPORTANT</b>: The values shown here are not 100% accurate. They only include values for the processes running. If an application is spawning children continuously, which are terminated in just a few milliseconds (like shell scripts do), the values reported will be inaccurate. Linux does report the values for the exited children of a process. However, these values are reported to the parent process <b>only when the child exits</b>. If these values, of the exited child processes, were also aggregated in the charts below, the charts would have been full of spikes, presenting unrealistic utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
1003                 height: 1.5
1004         },
1005
1006         'netdata': {
1007                 title: 'Netdata Monitoring',
1008                 info: undefined
1009         },
1010
1011         'example': {
1012                 title: 'Example Charts',
1013                 info: undefined
1014         },
1015 };
1016
1017 var submenuData = {
1018         'mem.ksm': {
1019                 title: 'Memory Deduper',
1020                 info: 'Kernel Same-page Merging (KSM) performance monitoring, read from several files in <code>/sys/kernel/mm/ksm/</code>. KSM is a memory-saving de-duplication feature in the Linux kernel (since version 2.6.32). The KSM daemon ksmd periodically scans those areas of user memory which have been registered with it, looking for pages of identical content which can be replaced by a single write-protected page (which is automatically copied if a process later wants to update its content). KSM was originally developed for use with KVM (where it was known as Kernel Shared Memory), to fit more virtual machines into physical memory, by sharing the data common between them.  But it can be useful to any application which generates many instances of the same data.'
1021         },
1022
1023         'netfilter.conntrack': {
1024                 title: 'Connection Tracker',
1025                 info: 'Netfilter Connection Tracker performance monitoring, read from <code>/proc/net/stat/nf_conntrack</code>. The connection tracker keeps track of all connections of the machine, inbound and outbound. It works by keeping a database with all open connections, tracking network and address translation and connection expectations.'
1026         },
1027
1028         'netfilter.nfacct': {
1029                 title: 'Bandwidth Accounting',
1030                 info: 'The following information is read using the <code>nfacct.plugin</code>.'
1031         },
1032
1033         'netfilter.synproxy': {
1034                 title: 'DDoS Protection',
1035                 info: 'DDoS Protection performance monitoring read from <code>/proc/net/stat/synproxy</code>. <a href="https://github.com/firehol/firehol/wiki/Working-with-SYNPROXY" target="_blank">SYNPROXY</a> is a TCP SYN packets proxy. It is used to protect any TCP server (like a web server) from SYN floods and similar DDoS attacks. It is a netfilter module, in the Linux kernel (since version 3.12). It is optimized to handle millions of packets per second utilizing all CPUs available without any concurrency locking between the connections. It can be used for any kind of TCP traffic (even encrypted), since it does not interfere with the content itself.'
1036         }
1037 };
1038
1039 var chartData = {
1040         'system.cpu': {
1041                 info: 'Total CPU utilization (all cores). 100% here means there is no CPU idle time at all. You can get per core usage at the <a href="#cpu">CPUs</a> section and per application usage at the <a href="#apps">Applications Monitoring</a> section.<br/>Keep an eye on <b>iowait</b> ' + sparkline('system.cpu', 'iowait', '%') + '. If it is constantly high, your disks are a bottleneck and they slow your system down.<br/>Another important metric worth monitoring, is <b>softirq</b> ' + sparkline('system.cpu', 'softirq', '%') + '. A constantly high percentage of softirq may indicate network drivers issues.'
1042         },
1043
1044         'system.load': {
1045                 info: 'Current system load read from <code>/proc/loadavg</code>.',
1046                 height: 0.7
1047         },
1048
1049         'system.io': {
1050                 info: 'Total Disk I/O, for all disks, read from <code>/proc/vmstat</code>. You can get detailed information about each disk at the <a href="#disk">Disks</a> section and per application Disk usage at the <a href="#apps">Applications Monitoring</a> section.'
1051         },
1052
1053         'system.swapio': {
1054                 info: 'Total Swap I/O, read from <code>/proc/vmstat</code>. (netdata measures both <code>in</code> and <code>out</code>. If either of them is not shown in the chart, it is because it is zero - you can change the page settings to always render all the available dimensions on all charts).'
1055         },
1056
1057         'system.pgfaults': {
1058                 info: 'Total page faults, read from <code>/proc/vmstat</code>. <b>Major page faults</b> indicates that the system is using its swap. You can find which applications use the swap at the <a href="#apps">Applications Monitoring</a> section.'
1059         },
1060
1061         'system.entropy': {
1062                 colors: '#CC22AA',
1063                 info: '<a href="https://en.wikipedia.org/wiki/Entropy_(computing)" target="_blank">Entropy</a>, read from <code>/proc/sys/kernel/random/entropy_avail</code>, is like a pool of random numbers that are mainly used in cryptography. It is advised that the pool remains always <a href="https://blog.cloudflare.com/ensuring-randomness-with-linuxs-random-number-generator/" target="_blank">above 200</a>. If the pool of entropy gets empty, you risk your security to be predictable and you should install a user-space random numbers generating daemon, like <a href="http://www.issihosts.com/haveged/" target="_blank">haveged</a>, to keep the pool in healthy levels.'
1064         },
1065
1066         'system.forks': {
1067                 colors: '#5555DD',
1068                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1069         },
1070
1071         'system.intr': {
1072                 colors: '#DD5555',
1073                 info: 'Total number of CPU interrupts, read from <code>/proc/stat</code>. Check <code>system.interrupts</code> that gives more detail about each interrupt and also the <a href="#cpu">CPUs</a> section where interrupts are analyzed per CPU core.'
1074         },
1075
1076         'system.interrupts': {
1077                 info: 'CPU interrupts in detail, read from <code>/proc/interrupts</code>. At the <a href="#cpu">CPUs</a> section, interrupts are analyzed per CPU core.'
1078         },
1079
1080         'system.softirqs': {
1081                 info: 'CPU softirqs in detail, read from <code>/proc/softirqs</code>. At the <a href="#cpu">CPUs</a> section, softirqs are analyzed per CPU core.'
1082         },
1083
1084         'system.processes': {
1085                 info: 'System processes, read from <code>/proc/stat</code>. <b>Blocked</b> are processes that are willing to execute but they cannot, e.g. because they wait for disk activity.'
1086         },
1087
1088         'system.active_processes': {
1089                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1090         },
1091
1092         'system.ctxt': {
1093                 info: '<a href="https://en.wikipedia.org/wiki/Context_switch" target="_blank">Context Switches</a>, read from <code>/proc/stat</code>, is the switching of the CPU from one process, task or thread to another. If there are many processes or threads willing to execute and very few CPU cores available to handle them, the system is making more context switching to balance the CPU resources among them. The whole process is computationally intensive. The more the context switches, the slower the system gets.'
1094         },
1095
1096         'system.idlejitter': {
1097                 colors: '#5555AA',
1098                 info: 'Idle jitter is calculated by netdata. A thread is spawned that requests to sleep for a few microseconds. When the system wakes it up, it measures how many microseconds have passed. The difference between the requested and the actual duration of the sleep, is the <b>idle jitter</b>. This number is useful in real-time environments, where CPU jitter can affect the quality of the service (like VoIP media gateways).'
1099         },
1100
1101         'system.ipv4': {
1102                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1103         },
1104
1105         'system.ipv6': {
1106                 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1107         },
1108
1109         'system.ram': {
1110                 info: 'System memory, read from <code>/proc/meminfo</code>.'
1111         },
1112
1113         'system.swap': {
1114                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1115         },
1116
1117         'mem.ksm_savings': {
1118                 heads: [
1119                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
1120                 ]
1121         },
1122
1123         'mem.ksm_ratios': {
1124                 heads: [
1125                         function(id) {
1126                                 return  '<div data-netdata="' + id + '"'
1127                                         + ' data-gauge-max-value="100"'
1128                                         + ' data-chart-library="gauge"'
1129                                         + ' data-title="Savings"'
1130                                         + ' data-units="percentage %"'
1131                                         + ' data-gauge-adjust="width"'
1132                                         + ' data-width="12%"'
1133                                         + ' data-before="0"'
1134                                         + ' data-after="-CHART_DURATION"'
1135                                         + ' data-points="CHART_DURATION"'
1136                                         + ' role="application"></div>';
1137                         }
1138                 ]
1139         },
1140
1141         'mem.committed': {
1142                 colors: NETDATA.colors[3]
1143         },
1144
1145         'apps.cpu': {
1146                 height: 2.0
1147         },
1148
1149         'apps.preads': {
1150                 height: 2.0
1151         },
1152
1153         'apps.pwrites': {
1154                 height: 2.0
1155         },
1156
1157         'users.cpu': {
1158                 height: 2.0
1159         },
1160
1161         'users.preads': {
1162                 height: 2.0
1163         },
1164
1165         'users.pwrites': {
1166                 height: 2.0
1167         },
1168
1169         'groups.cpu': {
1170                 height: 2.0
1171         },
1172
1173         'groups.preads': {
1174                 height: 2.0
1175         },
1176
1177         'groups.pwrites': {
1178                 height: 2.0
1179         },
1180
1181         'tc.qos': {
1182                 heads: [
1183                         function(id) {
1184                                 if(id.match(/.*-ifb$/))
1185                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
1186                                 else
1187                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
1188                         }
1189                 ]
1190         },
1191
1192         'net.net': {
1193                 heads: [
1194                         gaugeChart('Received', '12%', 'received'),
1195                         gaugeChart('Sent', '12%', 'sent')
1196                 ]
1197         },
1198
1199         'disk.util': {
1200                 colors: '#FF5588',
1201                 heads: [
1202                         gaugeChart('Utilization', '12%', '', '#FF5588')
1203                 ]
1204         },
1205
1206         'disk.backlog': {
1207                 colors: '#0099CC'
1208         },
1209
1210         'disk.io': {
1211                 heads: [
1212                         gaugeChart('Read', '12%', 'reads'),
1213                         gaugeChart('Write', '12%', 'writes')
1214                 ]
1215         },
1216
1217         'netfilter.sockets': {
1218                 colors: '#88AA00',
1219                 heads: [
1220                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1221                 ]
1222         },
1223
1224         'netfilter.new': {
1225                 heads: [
1226                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1227                 ]
1228         },
1229
1230         'disk.iotime': {
1231                 height: 0.5
1232         },
1233         'disk.mops': {
1234                 height: 0.5
1235         },
1236         'disk.svctm': {
1237                 height: 0.5
1238         },
1239         'disk.avgsz': {
1240                 height: 0.5
1241         },
1242         'disk.await': {
1243                 height: 0.5
1244         },
1245
1246         'apache.connections': {
1247                 colors: NETDATA.colors[4],
1248                 mainheads: [
1249                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1250                 ]
1251         },
1252
1253         'apache.requests': {
1254                 colors: NETDATA.colors[0],
1255                 mainheads: [
1256                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1257                 ]
1258         },
1259
1260         'apache.net': {
1261                 colors: NETDATA.colors[3],
1262                 mainheads: [
1263                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1264                 ]
1265         },
1266
1267         'apache.workers': {
1268                 mainheads: [
1269                         function(id) {
1270                                 return  '<div data-netdata="' + id + '"'
1271                                         + ' data-dimensions="busy"'
1272                                         + ' data-append-options="percentage"'
1273                                         + ' data-gauge-max-value="100"'
1274                                         + ' data-chart-library="gauge"'
1275                                         + ' data-title="Workers Utilization"'
1276                                         + ' data-units="percentage %"'
1277                                         + ' data-gauge-adjust="width"'
1278                                         + ' data-width="12%"'
1279                                         + ' data-before="0"'
1280                                         + ' data-after="-CHART_DURATION"'
1281                                         + ' data-points="CHART_DURATION"'
1282                                         + ' role="application"></div>';
1283                         }
1284                 ]
1285         },
1286
1287         'apache.bytesperreq': {
1288                 colors: NETDATA.colors[3],
1289                 height: 0.5
1290         },
1291
1292         'apache.reqpersec': {
1293                 colors: NETDATA.colors[4],
1294                 height: 0.5
1295         },
1296
1297         'apache.bytespersec': {
1298                 colors: NETDATA.colors[6],
1299                 height: 0.5
1300         },
1301
1302         'nginx.connections': {
1303                 colors: NETDATA.colors[4],
1304                 mainheads: [
1305                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1306                 ]
1307         },
1308
1309         'nginx.requests': {
1310                 colors: NETDATA.colors[0],
1311                 mainheads: [
1312                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1313                 ]
1314         }
1315 };
1316
1317 function anyAttribute(obj, attr, key, def) {
1318         if(typeof obj[key] !== 'undefined') {
1319                 if(typeof obj[key][attr] !== 'undefined')
1320                         return obj[key][attr];
1321         }
1322         return def;
1323 }
1324
1325 function menuTitle(menu) {
1326         return anyAttribute(menuData, 'title', menu, menu);
1327 }
1328
1329 function menuInfo(menu) {
1330         return anyAttribute(menuData, 'info', menu, null);
1331 }
1332
1333 function menuHeight(menu, relative) {
1334         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1335 }
1336
1337 function submenuTitle(menu, submenu) {
1338         var key = menu + '.' + submenu;
1339         return anyAttribute(submenuData, 'title', key, submenu);
1340 }
1341
1342 function submenuInfo(menu, submenu) {
1343         var key = menu + '.' + submenu;
1344         return anyAttribute(submenuData, 'info', key, null);
1345 }
1346
1347 function submenuHeight(menu, submenu, relative) {
1348         var key = menu + '.' + submenu;
1349         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1350 }
1351
1352
1353 function chartInfo(id) {
1354         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1355                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1356         else
1357                 return '';
1358 }
1359
1360 function chartHeight(id, def) {
1361         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1362                 return def * chartData[id].height;
1363         else
1364                 return def;
1365 }
1366
1367
1368 // ----------------------------------------------------------------------------
1369
1370 // enrich the data structure returned by netdata
1371 // to reflect our menu system and content
1372 function enrichChartData(chart) {
1373         var tmp = chart.type.split('_')[0];
1374
1375         switch(tmp) {
1376                 case 'ap':
1377                 case 'net':
1378                 case 'disk':
1379                         chart.menu = tmp;
1380                         break;
1381
1382                 case 'tc':
1383                         chart.menu = tmp;
1384
1385                         // find a name for this device from fireqos info
1386                         // we strip '_(in|out)' or '(in|out)_'
1387                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family) {
1388                                 var n = chart.name.split('.')[1];
1389                                 if(n.endsWith('_in'))
1390                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_in'));
1391                                 else if(n.endsWith('_out'))
1392                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_out'));
1393                                 else if(n.startsWith('in_'))
1394                                         options.submenu_names[chart.family] = n.slice(3, n.length);
1395                                 else if(n.startsWith('out_'))
1396                                         options.submenu_names[chart.family] = n.slice(4, n.length);
1397                         }
1398
1399                         // increase the priority of IFB devices
1400                         // to have inbound appear before outbound
1401                         if(chart.id.match(/.*-ifb$/))
1402                                 chart.priority--;
1403
1404                         break;
1405
1406                 default:
1407                         chart.menu = chart.type;
1408                         break;
1409         }
1410
1411         chart.submenu = chart.family;
1412 }
1413
1414 // ----------------------------------------------------------------------------
1415
1416 function name2id(s) {
1417         return s
1418                 .replace(' ', '_')
1419                 .replace('(', '_')
1420                 .replace(')', '_')
1421                 .replace('.', '_')
1422                 .replace('/', '_');
1423 }
1424
1425 function headMain(charts, duration) {
1426         var head = '';
1427
1428         if(typeof charts['system.swap'] !== 'undefined')
1429                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1430                 + ' data-dimensions="free"'
1431                 + ' data-append-options="percentage"'
1432                 + ' data-chart-library="easypiechart"'
1433                 + ' data-title="Free Swap"'
1434                 + ' data-units="%"'
1435                 + ' data-easypiechart-max-value="100"'
1436                 + ' data-width="8%"'
1437                 + ' data-before="0"'
1438                 + ' data-after="-' + duration.toString() + '"'
1439                 + ' data-points="' + duration.toString() + '"'
1440                 + ' data-colors="#DD4400"'
1441                 + ' role="application"></div>';
1442
1443         if(typeof charts['system.io'] !== 'undefined') {
1444                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1445                 + ' data-dimensions="in"'
1446                 + ' data-chart-library="easypiechart"'
1447                 + ' data-title="Disk Read"'
1448                 + ' data-units="KB / s"'
1449                 + ' data-width="10%"'
1450                 + ' data-before="0"'
1451                 + ' data-after="-' + duration.toString() + '"'
1452                 + ' data-points="' + duration.toString() + '"'
1453                 + ' role="application"></div>';
1454
1455                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1456                 + ' data-dimensions="out"'
1457                 + ' data-chart-library="easypiechart"'
1458                 + ' data-title="Disk Write"'
1459                 + ' data-units="KB / s"'
1460                 + ' data-width="10%"'
1461                 + ' data-before="0"'
1462                 + ' data-after="-' + duration.toString() + '"'
1463                 + ' data-points="' + duration.toString() + '"'
1464                 + ' role="application"></div>';
1465         }
1466
1467         if(typeof charts['system.cpu'] !== 'undefined')
1468                 head += '<div data-netdata="system.cpu"'
1469                 + ' data-chart-library="gauge"'
1470                 + ' data-title="CPU"'
1471                 + ' data-units="%"'
1472                 + ' data-gauge-max-value="100"'
1473                 + ' data-width="18%"'
1474                 + ' data-after="-' + duration.toString() + '"'
1475                 + ' data-points="' + duration.toString() + '"'
1476                 + ' data-colors="' + NETDATA.colors[12] + '"'
1477                 + ' role="application"></div>';
1478
1479         if(typeof charts['system.ipv4'] !== 'undefined') {
1480                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1481                 + ' data-dimensions="received"'
1482                 + ' data-chart-library="easypiechart"'
1483                 + ' data-title="IPv4 Inbound"'
1484                 + ' data-units="kbps"'
1485                 + ' data-width="10%"'
1486                 + ' data-before="0"'
1487                 + ' data-after="-' + duration.toString() + '"'
1488                 + ' data-points="' + duration.toString() + '"'
1489                 + ' role="application"></div>';
1490
1491                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1492                 + ' data-dimensions="sent"'
1493                 + ' data-chart-library="easypiechart"'
1494                 + ' data-title="IPv4 Outbound"'
1495                 + ' data-units="kbps"'
1496                 + ' data-width="10%"'
1497                 + ' data-before="0"'
1498                 + ' data-after="-' + duration.toString() + '"'
1499                 + ' data-points="' + duration.toString() + '"'
1500                 + ' role="application"></div>';
1501         }
1502         else if(typeof charts['system.ipv6'] !== 'undefined') {
1503                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1504                 + ' data-dimensions="received"'
1505                 + ' data-chart-library="easypiechart"'
1506                 + ' data-title="IPv6 Inbound"'
1507                 + ' data-units="kbps"'
1508                 + ' data-width="10%"'
1509                 + ' data-before="0"'
1510                 + ' data-after="-' + duration.toString() + '"'
1511                 + ' data-points="' + duration.toString() + '"'
1512                 + ' role="application"></div>';
1513
1514                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1515                 + ' data-dimensions="sent"'
1516                 + ' data-chart-library="easypiechart"'
1517                 + ' data-title="IPv6 Outbound"'
1518                 + ' data-units="kbps"'
1519                 + ' data-width="10%"'
1520                 + ' data-before="0"'
1521                 + ' data-after="-' + duration.toString() + '"'
1522                 + ' data-points="' + duration.toString() + '"'
1523                 + ' role="application"></div>';
1524         }
1525
1526         if(typeof charts['system.ram'] !== 'undefined')
1527                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1528                 + ' data-dimensions="cached|free"'
1529                 + ' data-append-options="percentage"'
1530                 + ' data-chart-library="easypiechart"'
1531                 + ' data-title="Available RAM"'
1532                 + ' data-units="%"'
1533                 + ' data-easypiechart-max-value="100"'
1534                 + ' data-width="8%"'
1535                 + ' data-after="-' + duration.toString() + '"'
1536                 + ' data-points="' + duration.toString() + '"'
1537                 + ' data-colors="' + NETDATA.colors[7] + '"'
1538                 + ' role="application"></div>';
1539
1540         return head;
1541 }
1542
1543 function generateHeadCharts(type, chart, duration) {
1544         var head = '';
1545         var hcharts = anyAttribute(chartData, type, chart.context, []);
1546         if(hcharts.length > 0) {
1547                 var hi = 0, hlen = hcharts.length;
1548                 while(hi < hlen) {
1549                         if(typeof hcharts[hi] === 'function')
1550                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1551                         else
1552                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1553                         hi++;
1554                 }
1555         }
1556         return head;
1557 }
1558
1559 function renderPage(menus, data) {
1560         var div = document.getElementById('charts_div');
1561         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1562
1563         // find the proper duration for per-second updates
1564         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1565         var html = '';
1566         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
1567         var mainhead = headMain(data.charts, duration);
1568
1569         // sort the menus
1570         var main = sortObjectByPriority(menus);
1571         var i = 0, len = main.length;
1572         while(i < len) {
1573                 var menu = main[i++];
1574
1575                 // generate an entry at the main menu
1576
1577                 sidebar += '<li class=""><a href="#' + menu + '">' + menus[menu].title + '</a><ul class="nav">';
1578                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menu + '" role="heading">' + menus[menu].title + '</h1></div><div id="' + menu + '" role="document">';
1579
1580                 if(menus[menu].info !== null)
1581                         html += menus[menu].info;
1582
1583                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
1584
1585                 var shtml = '';
1586                 var mhead = '<div style="width: 100%; text-align: center;">' + mainhead;
1587                 mainhead = '';
1588
1589                 // sort the submenus of this menu
1590                 var sub = sortObjectByPriority(menus[menu].submenus);
1591                 var si = 0, slen = sub.length;
1592                 while(si < slen) {
1593                         var submenu = sub[si++];
1594
1595                         // generate an entry at the submenu
1596                         sidebar += '<li class><a href="#' + name2id(menu + '_' + submenu) + '">' + menus[menu].submenus[submenu].title + '</a></li>';
1597                         shtml += '<div class="netdata-group-container" id="submenu_' + name2id(menu + '_' + submenu) + '" style="display: inline-block; width: ' + pcent_width.toString() + '%"><h2 id="' + name2id(menu + '_' + submenu) + '" class="netdata-chart-alignment" role="heading">' + menus[menu].submenus[submenu].title + '</h2>';
1598
1599                         if(menus[menu].submenus[submenu].info !== null)
1600                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
1601
1602                         var head = '<div style="width: 100%; text-align: center;">';
1603                         var chtml = '';
1604
1605                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
1606
1607                         // sort the charts in this submenu of this menu
1608                         menus[menu].submenus[submenu].charts.sort(prioritySort);
1609                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
1610                         while(ci < clen) {
1611                                 var chart = menus[menu].submenus[submenu].charts[ci++];
1612
1613                                 // generate the submenu heading charts
1614                                 mhead += generateHeadCharts('mainheads', chart, duration);
1615                                 head += generateHeadCharts('heads', chart, duration);
1616
1617                                 // generate the chart
1618                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
1619                                         + ' data-width="' + pcent_width.toString() + '%"'
1620                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
1621                                         + ' data-before="0"'
1622                                         + ' data-after="-' + duration.toString() + '"'
1623                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
1624                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
1625                                         + ' role="application"></div>';
1626
1627                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
1628                         }
1629
1630                         head += '</div>';
1631                         shtml += head + chtml + '</div>';
1632                 }
1633
1634                 mhead += '</div>';
1635                 sidebar += '</ul></li>';
1636                 html += mhead + shtml + '</div></div><hr role="separator"/>';
1637         }
1638
1639         sidebar += '</ul>';
1640         div.innerHTML = html;
1641         document.getElementById('sidebar').innerHTML = sidebar;
1642         finalizePage();
1643 }
1644
1645 function renderChartsAndMenu(data) {
1646         var menus = {};
1647         var charts = data.charts;
1648
1649         for(var c in charts) {
1650                 enrichChartData(charts[c]);
1651
1652                 // create the menu
1653                 if(typeof menus[charts[c].menu] === 'undefined') {
1654                         menus[charts[c].menu] = {
1655                                 priority: charts[c].priority,
1656                                 submenus: {},
1657                                 title: menuTitle(charts[c].menu),
1658                                 info: menuInfo(charts[c].menu),
1659                                 height: menuHeight(charts[c].menu, options.chartsHeight)
1660                         };
1661                 }
1662
1663                 if(charts[c].priority < menus[charts[c].menu].priority)
1664                         menus[charts[c].menu].priority = charts[c].priority;
1665
1666                 // create the submenu
1667                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
1668                         menus[charts[c].menu].submenus[charts[c].submenu] = {
1669                                 priority: charts[c].priority,
1670                                 charts: new Array(),
1671                                 title: null,
1672                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
1673                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
1674                         };
1675                 }
1676
1677                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
1678                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
1679
1680                 // index the chart in the menu/submenu
1681                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
1682         }
1683
1684         for(var m in menus) {
1685                 for(var s in menus[m].submenus) {
1686                         // set the family using a name
1687                         if(typeof options.submenu_names[s] !== 'undefined') {
1688                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
1689                         }
1690                         else {
1691                                 menus[m].submenus[s].title = submenuTitle(m, s);
1692                         }
1693                 }
1694         }
1695
1696         renderPage(menus, data);
1697 }
1698
1699 function downloadAllCharts(netdata_url) {
1700         if(typeof netdata_url === 'undefined' || netdata_url === null)
1701                 netdata_url = NETDATA.serverDefault;
1702
1703         NETDATA.pause(function() {
1704
1705                 // download all the charts the server knows
1706                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
1707
1708                         options.data = data;
1709                         options.hostname = data.hostname;
1710                         document.getElementById('hostname').innerHTML = options.hostname;
1711                         document.getElementById('hostname').href = NETDATA.serverDefault;
1712                         document.title = options.hostname + ' dashboard';
1713
1714                         renderChartsAndMenu(data);
1715
1716                         // prepare our DOM
1717 //                      prepareScreen(data);
1718
1719                         // due to affix issues, prepareScreen() will unpause
1720                         // netdata as needed
1721                 });
1722         });
1723 }
1724
1725 // ----------------------------------------------------------------------------
1726
1727 function versionLog(msg) {
1728         document.getElementById('versionCheckLog').innerHTML = msg;
1729 }
1730
1731 function getNetdataVersion(callback) {
1732         versionLog('Downloading installed version info from netdata...');
1733
1734         $.ajax({
1735                 url: 'version.txt',
1736                 async: true,
1737                 cache: false
1738         })
1739         .done(function(data) {
1740                 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
1741                 if(data.length !== 40) {
1742                         versionLog('Received version string is invalid.');
1743                         callback(null);
1744                 }
1745                 else {
1746                         versionLog('Installed version of netdata is ' + data);
1747                         document.getElementById('netdataVersion').innerHTML = data;
1748                         callback(data);
1749                 }
1750         })
1751         .fail(function() {
1752                 versionLog('Failed to download installed version info from netdata!');
1753                 callback(null);
1754         });
1755 }
1756
1757 function getGithubLatestCommit(callback) {
1758         versionLog('Downloading latest version info from github...');
1759
1760         $.ajax({
1761                 url: 'https://api.github.com/repos/firehol/netdata/commits',
1762                 async: true,
1763                 cache: false
1764         })
1765         .done(function(data) {
1766                 versionLog('Latest version info from github is ' + data[0].sha);
1767                 callback(data[0].sha);
1768         })
1769         .fail(function() {
1770                 versionLog('Failed to download installed version info from github!');
1771                 callback(null);
1772         });
1773 }
1774
1775 function checkForUpdate(callback) {
1776         getNetdataVersion(function(sha1) {
1777                 if(sha1 === null) callback(null, null);
1778
1779                 getGithubLatestCommit(function(sha2) {
1780                         callback(sha1, sha2);
1781                 });
1782         });
1783
1784         return null;
1785 }
1786
1787 var updateBlinkCounter = 0;
1788 function notifyForUpdate(force) {
1789         versionLog('<p>checking for updates...</p>');
1790
1791         var now = new Date().getTime();
1792
1793         if(typeof force === 'undefined' || force !== true) {
1794                 var last = loadLocalStorage('last_update_check');
1795
1796                 if(typeof last === 'string')
1797                         last = parseInt(last);
1798                 else
1799                         last = 0;
1800
1801                 if(now - last < 3600000 * 8) {
1802                         // no need to check it - too soon
1803                         return;
1804                 }
1805         }
1806
1807         checkForUpdate(function(sha1, sha2) {
1808                 var save = false;
1809
1810                 if(sha1 === null) {
1811                         save = false;
1812                         versionLog('<p><big>Failed to get your netdata version!</big></p><p>You can always get the latest version of netdata from <a href="https://github.com/firehol/netdata" target="_blank">its github page</a>.</p>');
1813                 }
1814                 else if(sha2 === null) {
1815                         save = false;
1816                         versionLog('<p><big>Failed to get the latest version from github.</big></p><p>You can always get the latest version of netdata from <a href="https://github.com/firehol/netdata" target="_blank">its github page</a>.</p>');
1817                 }
1818                 else if(sha1 === sha2) {
1819                         save = true;
1820                         versionLog('<p><big>You already have the latest version of netdata!</big></p><p>No update yet?<br/>Probably, we need some motivation to keep going on!</p><p>If you haven\'t already, <a href="https://github.com/firehol/netdata" target="_blank">give netdata a <b>Star</b> at its github page</a>.</p>');
1821                 }
1822                 else {
1823                         save = true;
1824                         var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
1825
1826                         versionLog('<p><big><strong>New version of netdata available!</strong></big></p><p>Latest version: ' + sha2.toString() + '</p><p><a href="' + compare + '" target="_blank">Click here for the changes log</a> since your installed version, and<br/><a href="https://github.com/firehol/netdata/wiki/Updating-Netdata" target="_blank">click here for directions on updating</a> your netdata installation.</p><p>We suggest to review the changes log for new features you may be interested, or important bug fixes you may need.<br/>Keeping your netdata updated, is generally a good idea.</p>');
1827
1828                         function updateButtonBlink() {
1829                                 updateBlinkCounter--;
1830                                 if(updateBlinkCounter > 0)
1831                                         $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
1832                         }
1833
1834                         if(updateBlinkCounter === 0) {
1835                                 updateBlinkCounter = 300;
1836                                 updateButtonBlink();
1837                         }
1838                 }
1839
1840                 if(save)
1841                         saveLocalStorage('last_update_check', now.toString());
1842         });
1843 }
1844
1845 // ----------------------------------------------------------------------------
1846
1847 function getUrlParameter(sParam) {
1848     var sPageURL = decodeURIComponent(window.location.search.substring(1)),
1849         sURLVariables = sPageURL.split('&'),
1850         sParameterName,
1851         i;
1852
1853     for (i = 0; i < sURLVariables.length; i++) {
1854         sParameterName = sURLVariables[i].split('=');
1855
1856         if (sParameterName[0] === sParam) {
1857             return sParameterName[1] === undefined ? true : sParameterName[1];
1858         }
1859     }
1860 }
1861
1862 function finalizePage() {
1863         // resize all charts - without starting the background thread
1864         // this has to be done while NETDATA is paused
1865         // if we ommit this, the affix menu will be wrong, since all
1866         // the Dom elements are initially zero-sized
1867         NETDATA.parseDom();
1868
1869         var before = 0, after = 0, nowelcome = 0;
1870         after = getUrlParameter('force_after_ms');
1871         before = getUrlParameter('force_before_ms');
1872         nowelcome = (getUrlParameter('nowelcome') === true)?true:false;
1873
1874         if(before > 0 && after > 0) {
1875                 nowelcome = true;
1876                 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
1877         }
1878
1879         // let it run (update the charts)
1880         NETDATA.unpause();
1881
1882         // check if we have to jump to a specific section
1883         var hash = location.hash.replace('#','');
1884         if(hash != '') {
1885                 // Clear the hash in the URL
1886                 // location.hash = '';   // delete front "//" if you want to change the address bar
1887                 var offset = $(location.hash).offset();
1888                 if(typeof offset !== 'undefined')
1889                         $('html, body').animate({ scrollTop: offset.top }, 0);
1890         }
1891
1892         /* activate bootstrap sidebar (affix) */
1893         $('#sidebar').affix({
1894                 offset: {
1895                         top: (isdemo())?150:0,
1896                         bottom: 0
1897                 }
1898         });
1899
1900         /* fix scrolling of very long affix lists
1901            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
1902          */
1903         $('#sidebar').on('affixed.bs.affix', function() {
1904                 $(this).removeAttr('style');
1905         });
1906
1907         /* activate bootstrap scrollspy (needed for sidebar) */
1908         $(document.body).scrollspy({
1909                 target: '#sidebar',
1910                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
1911         });
1912
1913         document.getElementById('footer').style.display = 'block';
1914
1915
1916         var update_options_modal = function() {
1917                 // console.log('update_options_modal');
1918
1919                 var sync_option = function(option) {
1920                         var self = $('#' + option);
1921
1922                         if(self.prop('checked') !== NETDATA.getOption(option)) {
1923                                 // console.log('switching ' + option.toString());
1924                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
1925                         }
1926                 }
1927
1928                 var theme_sync_option = function(option) {
1929                         var self = $('#' + option);
1930
1931                         self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
1932                 }
1933
1934                 sync_option('eliminate_zero_dimensions');
1935                 sync_option('destroy_on_hide');
1936                 sync_option('parallel_refresher');
1937                 sync_option('concurrent_refreshes');
1938                 sync_option('sync_selection');
1939                 sync_option('sync_pan_and_zoom');
1940                 sync_option('stop_updates_when_focus_is_lost');
1941                 sync_option('smooth_plot');
1942                 sync_option('pan_and_zoom_data_padding');
1943                 sync_option('show_help');
1944                 theme_sync_option('netdata_theme_control');
1945
1946                 if(NETDATA.getOption('parallel_refresher') === false) {
1947                         $('#concurrent_refreshes_row').hide();
1948                 }
1949                 else {
1950                         $('#concurrent_refreshes_row').show();
1951                 }
1952         };
1953         NETDATA.setOption('setOptionCallback', update_options_modal);
1954
1955         // handle options changes
1956         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
1957         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
1958         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
1959         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
1960         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
1961         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
1962         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
1963         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
1964         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
1965         $('#show_help').change(function()                       { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
1966
1967         // this has to be the last
1968         // it reloads the page
1969         $('#netdata_theme_control').change(function() {
1970                 if(setTheme($(this).prop('checked')?'slate':'white'))
1971                         location.reload();
1972         });
1973
1974         if(!nowelcome && isdemo()) {
1975                 setTimeout(function() {
1976                         $('#welcomeModal').modal();
1977                 }, 1000);
1978         }
1979         else
1980                 notifyForUpdate();
1981
1982         $('#updateModal').on('shown.bs.modal', function() {
1983                 notifyForUpdate(true);
1984         });
1985 }
1986
1987 function resetDashboardOptions() {
1988         var help = NETDATA.options.current.show_help;
1989
1990         NETDATA.resetOptions();
1991         if(setTheme('slate'))
1992                 location.reload();
1993
1994         if(help !== NETDATA.options.current.show_help)
1995                 location.reload();
1996 }
1997
1998 downloadAllCharts();
1999
2000 </script>
2001
2002 </body>
2003 </html>