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">
  23         <link rel="icon" type="image/png" sizes="64x64" href="images/seo-performance-64.png">
  24         <link rel="icon" type="image/png" sizes="48x48" href="images/seo-performance-48.png">
  25         <link rel="icon" type="image/png" sizes="32x32" href="images/seo-performance-32.png">
  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?v32"></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 class="collapse navbar-collapse navbar-right" role="navigation">
 349                                 <ul class="nav navbar-nav">
 350                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 351                                         <li><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 352                                         <li id="updateButton"><a href="#" class="btn" data-toggle="modal" data-target="#updateModal"><i class="fa fa-cloud-download"></i> update</a></li>
 353 <!--                                    <li><a href="old/" class="btn" target="_blank"><i class="fa fa-step-backward"></i> old dashboard</a></li> -->
 354                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 355 <!--                                    <li><a href="#sec">Visualize</a></li>
 356                                         <li><a href="#sec">Prototype</a></li>
 357 -->                             </ul>
 358                         </nav>
 359                 </div>
 360         </nav>
 361
 362         <div id="masthead" style="display: none;">
 363                 <div class="container">
 364                         <div class="row">
 365                                 <div class="col-md-7">
 366                                         <h1>Netdata
 367                                                 <p class="lead">Real-time performance monitoring, in the greatest possible detail</p>
 368                                         </h1>
 369                                 </div>
 370                                 <div class="col-md-5">
 371                                         <div class="well well-lg">
 372                                                 <div class="row">
 373                                                 <div class="col-md-6">
 374                                                         <b>Drag</b> charts to pan.
 375                                                         <b>Shift + wheel</b> on them, to zoom in and out.
 376                                                         <b>Double-click</b> on them, to reset.
 377                                                         <b>Hover</b> on them too!
 378                                                         </div>
 379                                                 <div class="col-md-6">
 380                                                         <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>
 381                                                         </div>
 382                                                 </div>
 383                                         </div>
 384                                 </div>
 385                         </div>
 386                 </div>
 387         </div>
 388
 389         <div class="container">
 390                 <div class="row">
 391                         <div class="col-md-10" role="main">
 392                                 <div id="charts_div"></div>
 393                         </div>
 394                         <div class="col-md-2" role="complementary">
 395                                 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
 396                         </div>
 397                 </div>
 398         </div>
 399
 400         <div id="footer" class="container" style="display: none;">
 401                 <div class="row">
 402                         <div class="col-md-10" role="main">
 403                                 <div class="p">
 404                                         <big><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></big><br/>
 405                                         <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
 406                                         Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
 407                                 </div>
 408                                 <div class="p">
 409                                         <small>
 410                                                 <a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a> re-distributes these software tools:
 411
 412                                                 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
 413                                                 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
 414
 415                                                 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
 416                                                 <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>
 417
 418                                                 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
 419                                                 <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>
 420
 421                                                 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
 422                                                 <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>
 423
 424                                                 <i class="fa fa-circle"></i> <a href="http://bernii.github.io/gauge.js/" target="_blank">Gauge.js</a> web chart library,
 425                                                 <i class="fa fa-copyright"></i> Copyright, Bernard Kobos, <a href="http://bernii.github.io/gauge.js/" target="_blank">MIT License</a>
 426
 427                                                 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
 428                                                 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
 429
 430                                                 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
 431                                                 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
 432
 433                                                 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
 434                                                 <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>
 435
 436                                                 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
 437                                                 <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>
 438
 439                                                 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
 440                                                 <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>
 441
 442                                                 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
 443                                                 <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>
 444
 445                                                 <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.
 446
 447                                                 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
 448                                                 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
 449
 450                                                 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
 451                                                 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
 452
 453                                                 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
 454                                                 <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>
 455
 456                                                 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
 457                                                 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
 458
 459                                                 <i class="fa fa-circle"></i> <a href="https://github.com/broofa/node-int64" target="_blank">node-int64</a>,
 460                                                 <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>
 461
 462                                         </small>
 463                                 </div>
 464                         </div>
 465                 </div>
 466         </div>
 467
 468         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 469                 <div class="modal-dialog modal-lg" role="document">
 470                         <div class="modal-content">
 471                                 <div class="modal-header">
 472                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 473                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
 474                                 </div>
 475                                 <div class="modal-body">
 476                                                 <div class="p">
 477                                                 <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.
 478                                                 </div>
 479                                                 <div class="p">
 480                                                 <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.
 481                                                 </div>
 482                                                 <div class="p">
 483                                                 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.
 484                                                 </div>
 485                                                 <div class="p">
 486                                                 <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>%),
 487                                                 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).
 488                                                 </div>
 489                                                 <div class="p">
 490                                                 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>!).
 491                                                 </div>
 492                                                 <div class="p">
 493                                                 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
 494                                                 </div>
 495                                 </div>
 496                                 <div class="modal-footer">
 497                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 498                                 </div>
 499                         </div>
 500                 </div>
 501         </div>
 502
 503         <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
 504                 <div class="modal-dialog modal-lg" role="document">
 505                         <div class="modal-content">
 506                                 <div class="modal-header">
 507                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 508                                         <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
 509                                 </div>
 510                                 <div class="modal-body">
 511
 512                                         <h4>Dygraphs (line, area and stacked area charts)</h4>
 513
 514                                         <!-- Nav tabs -->
 515                                         <ul class="nav nav-tabs" role="tablist">
 516                                                 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
 517                                                 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
 518                                         </ul>
 519
 520                                         <!-- Tab panes -->
 521                                         <div class="tab-content">
 522                                                 <div role="tabpanel" class="tab-pane active" id="help_mouse">
 523                                                         <div class="p">
 524                                                                 <h4>Mouse Over / Hover</h4>
 525                                                                 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).
 526                                                                 <br/>
 527                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 528                                                         </div>
 529                                                         <hr/>
 530                                                         <div class="p">
 531                                                                 <h4>Drag Chart Contents</h4>
 532                                                                 Drag the contents of a chart to pan it horizontally.
 533                                                                 <br/>
 534                                                                 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).
 535                                                                 <br/>
 536                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
 537                                                         </div>
 538                                                         <hr/>
 539                                                         <div class="p">
 540                                                                 <h4>Double Click</h4>
 541                                                                 Double Click a chart to reset all the charts to their default auto-refreshing state.
 542                                                         </div>
 543                                                         <hr/>
 544                                                         <div class="p">
 545                                                                 <h4>SHIFT + Drag</h4>
 546                                                                 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:
 547                                                                 <ul>
 548                                                                         <li>The already loaded chart contents are zoomed (low resolution)</li>
 549                                                                         <li>New data are transferred from the netdata server, to refresh the chart with possibly more detail.</li>
 550                                                                 </ul>
 551                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 552                                                         </div>
 553                                                         <hr/>
 554                                                         <div class="p">
 555                                                                 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
 556                                                                 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.
 557                                                                 <br/>
 558                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 559                                                         </div>
 560                                                         <hr/>
 561                                                         <div class="p">
 562                                                                 <h4>Legend Operations</h4>
 563                                                                 Click on the label or value of a dimension, will select / un-select this dimension.
 564                                                                 <br/>
 565                                                                 You can press any of the SHIFT or CONTROL keys and then click on legend labels or values, to select / un-select multiple dimensions.
 566                                                         </div>
 567                                                 </div>
 568                                                 <div role="tabpanel" class="tab-pane" id="help_touch">
 569                                                         <div class="p">
 570                                                                 <h4>Single Tap</h4>
 571                                                                 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).
 572                                                                 <br/>
 573                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 574                                                         </div>
 575                                                         <hr/>
 576                                                         <div class="p">
 577                                                                 <h4>Drag Chart Contents</h4>
 578                                                                 Touch and Drag the contents of a chart to pan it horizontally.
 579                                                                 <br/>
 580                                                                 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).
 581                                                                 <br/>
 582                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
 583                                                         </div>
 584                                                         <hr/>
 585                                                         <div class="p">
 586                                                                 <h4>Double Tap</h4>
 587                                                                 Double tap a chart to reset all the charts to their default auto-refreshing state.
 588                                                         </div>
 589                                                         <hr/>
 590                                                         <div class="p">
 591                                                                 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
 592                                                                 With two fingers, zoom in or out.
 593                                                                 <br/>
 594                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 595                                                         </div>
 596                                                         <hr/>
 597                                                         <div class="p">
 598                                                                 <h4>Legend Operations</h4>
 599                                                                 Tap on the label or value of a dimension, will select / un-select this dimension.
 600                                                         </div>
 601                                                 </div>
 602                                         </div>
 603                                 </div>
 604                                 <div class="modal-footer">
 605                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 606                                 </div>
 607                         </div>
 608                 </div>
 609         </div>
 610
 611         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 612                 <div class="modal-dialog modal-lg" role="document">
 613                         <div class="modal-content">
 614                                 <div class="modal-header">
 615                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 616                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 617                                 </div>
 618                                 <div class="modal-body">
 619                                         <center>
 620                                                 <small style="color: #BBBBBB;">These are browser settings. Each viewer has its own. They do not affect the operation of your netdata server.
 621                                                 <br/>
 622                                                 Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 623                                                 <br/>
 624                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="resetDashboardOptions(); return false;">here</a>.</small>
 625                                         </center>
 626                                         <div style="padding: 10px;"></div>
 627
 628                                         <!-- Nav tabs -->
 629                                         <ul class="nav nav-tabs" role="tablist">
 630                                                 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
 631                                                 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
 632                                                 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
 633                                         </ul>
 634
 635                                         <!-- Tab panes -->
 636                                         <div class="tab-content">
 637                                                 <div role="tabpanel" class="tab-pane active" id="settings_performance">
 638                                                         <form id="optionsForm1" method="get" class="form-horizontal">
 639                                                                 <div class="form-group">
 640                                                                         <table>
 641                                                                         <tr class="option-row">
 642                                                                                 <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>
 643                                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 644                                                                                         <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>
 645                                                                                 </td>
 646                                                                                 </tr>
 647                                                                         <tr class="option-row">
 648                                                                                 <td class="option-control">
 649                                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 650                                                                                 </td>
 651                                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 652                                                                                         <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>
 653                                                                                 </td>
 654                                                                                 </tr>
 655                                                                         <tr class="option-row">
 656                                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 657                                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 658                                                                                         <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>
 659                                                                                 </td>
 660                                                                                 </tr>
 661                                                                         </table>
 662                                                                 </div>
 663                                                         </form>
 664                                                 </div>
 665                                                 <div role="tabpanel" class="tab-pane" id="settings_sync">
 666                                                         <form id="optionsForm2" method="get" class="form-horizontal">
 667                                                                 <div class="form-group">
 668                                                                         <table>
 669                                                                         <tr class="option-row">
 670                                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequential" data-width="110px"></td>
 671                                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 672                                                                                         <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>
 673                                                                                 </td>
 674                                                                                 </tr>
 675                                                                         <tr class="option-row" id="concurrent_refreshes_row">
 676                                                                                 <td class="option-control"></td>
 677                                                                                 <td class="option-info">
 678                                                                                         <table>
 679                                                                                         <tr class="option-row">
 680                                                                                         <td class="option-control">
 681                                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 682                                                                                         </td>
 683                                                                                         <td class="option-info">
 684                                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 685                                                                                         <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>
 686                                                                                         </td>
 687                                                                                         </tr>
 688                                                                                         </table>
 689                                                                                 </td>
 690                                                                                 </tr>
 691                                                                         <tr class="option-row">
 692                                                                                 <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>
 693                                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 694                                                                                         <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>
 695                                                                                 </td>
 696                                                                                 </tr>
 697                                                                         <tr class="option-row">
 698                                                                                 <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>
 699                                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 700                                                                                         <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>
 701                                                                                 </td>
 702                                                                                 </tr>
 703                                                                         </table>
 704                                                                 </div>
 705                                                         </form>
 706                                                 </div>
 707                                                 <div role="tabpanel" class="tab-pane" id="settings_visual">
 708                                                         <form id="optionsForm3" method="get" class="form-horizontal">
 709                                                                 <div class="form-group">
 710                                                                         <table>
 711                                                                         <tr class="option-row">
 712                                                                                 <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>
 713                                                                                 <td class="option-info"><strong>Which theme to use?</strong><br/>
 714                                                                                         <small>Netdata comes with two themes: <b>Dark</b> (the default) and <b>White</b>.
 715                                                                                         <br/>
 716                                                                                         <b>Switching this will reload the dashboard</b>.
 717                                                                                         </small>
 718                                                                                 </td>
 719                                                                                 </tr>
 720                                                                         <tr class="option-row">
 721                                                                                 <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>
 722                                                                                 <td class="option-info"><strong>Do you need help?</strong><br/>
 723                                                                                         <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.
 724                                                                                         <br/>
 725                                                                                         <b>Switching this will reload the dashboard</b>.
 726                                                                                         </small>
 727                                                                                 </td>
 728                                                                                 </tr>
 729                                                                         <tr class="option-row">
 730                                                                                 <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>
 731                                                                                 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
 732                                                                                         <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>
 733                                                                                 </td>
 734                                                                                 </tr>
 735                                                                         <tr class="option-row">
 736                                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 737                                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 738                                                                                         <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.
 739                                                                                         <br/>
 740                                                                                         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>
 741                                                                                 </td>
 742                                                                                 </tr>
 743                                                                         </table>
 744                                                                 </div>
 745                                                         </form>
 746                                                 </div>
 747                                         </div>
 748                                 </div>
 749                                 <div class="modal-footer">
 750                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 751                                 </div>
 752                         </div>
 753                 </div>
 754         </div>
 755
 756
 757         <div class="modal fade" id="updateModal" tabindex="-1" role="dialog" aria-labelledby="updateModalLabel">
 758                 <div class="modal-dialog" role="document">
 759                         <div class="modal-content">
 760                                 <div class="modal-header">
 761                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 762                                         <h4 class="modal-title" id="updateModalLabel">Update Check</h4>
 763                                 </div>
 764                                 <div class="modal-body">
 765                                         Your netdata version: <b><code><span id="netdataVersion">Unknown</span></code></b>
 766                                         <br/>
 767                                         <div style="padding: 10px;"></div>
 768                                         <div id="versionCheckLog">Not checked yet. Please press the Check Now button.</div>
 769                                 </div>
 770                                 <div class="modal-footer">
 771                                         <a href="#" onclick="notifyForUpdate(true);" type="button" class="btn btn-default">Check Now</a>
 772                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 773                                 </div>
 774                         </div>
 775                 </div>
 776         </div>
 777
 778 <script>
 779
 780 var this_is_demo = null;
 781 function isdemo() {
 782         if(this_is_demo !== null) return this_is_demo;
 783         this_is_demo = false;
 784
 785         try {
 786                 if(typeof document.location.hostname === 'string')
 787                         this_is_demo = document.location.hostname.endsWith('.firehol.org');
 788         }
 789         catch(error) {
 790                 ;
 791         }
 792
 793         return this_is_demo;
 794 }
 795
 796 if(isdemo()) {
 797         document.getElementById('masthead').style.display = 'block';
 798 }
 799
 800 var options = {
 801         sparklines_registry: {},
 802         submenu_names: {},
 803         data: null,
 804         hostname: 'netdata_server', // will be overwritten by the netdata server
 805         categories: new Array(),
 806         categories_idx: {},
 807         families: new Array(),
 808         families_idx: {},
 809
 810         chartsPerRow: 0,
 811         chartsMinWidth: 1450,
 812         chartsHeight: 180,
 813         sparklinesHeight: 60
 814 };
 815
 816 // generate a sparkline
 817 // used in the documentation
 818 function sparkline(chart, dimension, units) {
 819         var key = chart + '.' + dimension;
 820
 821         if(typeof units === 'undefined')
 822                 units = '';
 823
 824         if(typeof options.sparklines_registry[key] === 'undefined')
 825                 options.sparklines_registry[key] = { count: 1 };
 826         else
 827                 options.sparklines_registry[key].count++;
 828
 829         key = key + '.' + options.sparklines_registry[key].count;
 830
 831         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 + ')';
 832
 833         return h;
 834 }
 835
 836 function chartsPerRow(total) {
 837         if(options.chartsPerRow === 0) {
 838                 width = Math.floor(total / options.chartsMinWidth);
 839                 if(width === 0) width = 1;
 840                 return width;
 841         }
 842         else return options.chartsPerRow;
 843 }
 844
 845 function prioritySort(a, b) {
 846         if(a.priority < b.priority) return -1;
 847         if(a.priority > b.priority) return 1;
 848         if(a.name < b.name) return -1;
 849         return 1;
 850 }
 851
 852 function sortObjectByPriority(object) {
 853         var idx = {};
 854         var sorted = new Array();
 855
 856         for(var i in object) {
 857                 if(typeof idx[i] === 'undefined') {
 858                         idx[i] = object[i];
 859                         sorted.push(i);
 860                 }
 861         }
 862
 863         sorted.sort(function(a, b) {
 864                 if(idx[a].priority < idx[b].priority) return -1;
 865                 if(idx[a].priority > idx[b].priority) return 1;
 866                 if(a < b) return -1;
 867                 return 1;
 868         });
 869
 870         return sorted;
 871 }
 872
 873 // ----------------------------------------------------------------------------
 874
 875 function gaugeChart(title, width, dimensions, colors) {
 876         if(typeof colors === 'undefined')
 877                 colors = '';
 878
 879         if(typeof dimensions === 'undefined')
 880                 dimensions = '';
 881
 882         return '<div data-netdata="CHART_UNIQUE_ID"'
 883                                                         + ' data-dimensions="' + dimensions + '"'
 884                                                         + ' data-chart-library="gauge"'
 885                                                         + ' data-gauge-adjust="width"'
 886                                                         + ' data-title="' + title + '"'
 887                                                         + ' data-width="' + width + '"'
 888                                                         + ' data-before="0"'
 889                                                         + ' data-after="-CHART_DURATION"'
 890                                                         + ' data-points="CHART_DURATION"'
 891                                                         + ' data-colors="' + colors + '"'
 892                                                         + ' role="application"></div>';
 893 }
 894
 895 // ----------------------------------------------------------------------------
 896
 897 var menuData = {
 898         'system': {
 899                 title: 'System Overview',
 900                 info: 'Overview of the key system metrics.'
 901         },
 902
 903         'ap': {
 904                 title: 'Access Points',
 905                 info: undefined
 906         },
 907
 908         'tc': {
 909                 title: 'Quality of Service',
 910                 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).'
 911         },
 912
 913         'net': {
 914                 title: 'Network Interfaces',
 915                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
 916         },
 917
 918         'ipv4': {
 919                 title: 'IPv4 Networking',
 920                 info: undefined
 921         },
 922
 923         'ipv6': {
 924                 title: 'IPv6 Networking',
 925                 info: undefined
 926         },
 927
 928         'ipvs': {
 929                 title: 'IP Virtual Server',
 930                 info: undefined
 931         },
 932
 933         'netfilter': {
 934                 title: 'Firewall (netfilter)',
 935                 info: undefined
 936         },
 937
 938         'cpu': {
 939                 title: 'CPUs',
 940                 info: undefined
 941         },
 942
 943         'mem': {
 944                 title: 'Memory',
 945                 info: undefined
 946         },
 947
 948         'disk': {
 949                 title: 'Disks',
 950                 info: undefined
 951         },
 952
 953         'sensors': {
 954                 title: 'Sensors',
 955                 info: undefined
 956         },
 957
 958         'nfsd': {
 959                 title: 'File Server (nfsd)',
 960                 info: undefined
 961         },
 962
 963         'apps': {
 964                 title: 'Applications',
 965                 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>.',
 966                 height: 1.5
 967         },
 968
 969         'users': {
 970                 title: 'Users',
 971                 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>.',
 972                 height: 1.5
 973         },
 974
 975         'groups': {
 976                 title: 'User Groups',
 977                 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>.',
 978                 height: 1.5
 979         },
 980
 981         'netdata': {
 982                 title: 'Netdata Monitoring',
 983                 info: undefined
 984         },
 985
 986         'example': {
 987                 title: 'Example Charts',
 988                 info: undefined
 989         },
 990 };
 991
 992 var submenuData = {
 993         'mem.ksm': {
 994                 title: 'Memory Deduper',
 995                 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.'
 996         },
 997
 998         'netfilter.conntrack': {
 999                 title: 'Connection Tracker',
1000                 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.'
1001         },
1002
1003         'netfilter.nfacct': {
1004                 title: 'Bandwidth Accounting',
1005                 info: 'The following information is read using the <code>nfacct.plugin</code>.'
1006         },
1007
1008         'netfilter.synproxy': {
1009                 title: 'DDoS Protection',
1010                 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.'
1011         }
1012 };
1013
1014 var chartData = {
1015         'system.cpu': {
1016                 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.'
1017         },
1018
1019         'system.load': {
1020                 info: 'Current system load read from <code>/proc/loadavg</code>.',
1021                 height: 0.7
1022         },
1023
1024         'system.io': {
1025                 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.'
1026         },
1027
1028         'system.swapio': {
1029                 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).'
1030         },
1031
1032         'system.pgfaults': {
1033                 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.'
1034         },
1035
1036         'system.entropy': {
1037                 colors: '#CC22AA',
1038                 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.'
1039         },
1040
1041         'system.forks': {
1042                 colors: '#5555DD',
1043                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1044         },
1045
1046         'system.intr': {
1047                 colors: '#DD5555',
1048                 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.'
1049         },
1050
1051         'system.interrupts': {
1052                 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.'
1053         },
1054
1055         'system.softirqs': {
1056                 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.'
1057         },
1058
1059         'system.processes': {
1060                 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.'
1061         },
1062
1063         'system.active_processes': {
1064                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1065         },
1066
1067         'system.ctxt': {
1068                 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.'
1069         },
1070
1071         'system.idlejitter': {
1072                 colors: '#5555AA',
1073                 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).'
1074         },
1075
1076         'system.ipv4': {
1077                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1078         },
1079
1080         'system.ipv6': {
1081                 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1082         },
1083
1084         'system.ram': {
1085                 info: 'System memory, read from <code>/proc/meminfo</code>.'
1086         },
1087
1088         'system.swap': {
1089                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1090         },
1091
1092         'mem.ksm_savings': {
1093                 heads: [
1094                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
1095                 ]
1096         },
1097
1098         'mem.ksm_ratios': {
1099                 heads: [
1100                         function(id) {
1101                                 return  '<div data-netdata="' + id + '"'
1102                                         + ' data-gauge-max-value="100"'
1103                                         + ' data-chart-library="gauge"'
1104                                         + ' data-title="Savings"'
1105                                         + ' data-units="percentage %"'
1106                                         + ' data-gauge-adjust="width"'
1107                                         + ' data-width="12%"'
1108                                         + ' data-before="0"'
1109                                         + ' data-after="-CHART_DURATION"'
1110                                         + ' data-points="CHART_DURATION"'
1111                                         + ' role="application"></div>';
1112                         }
1113                 ]
1114         },
1115
1116         'mem.committed': {
1117                 colors: NETDATA.colors[3]
1118         },
1119
1120         'apps.cpu': {
1121                 height: 2.0
1122         },
1123
1124         'apps.preads': {
1125                 height: 2.0
1126         },
1127
1128         'apps.pwrites': {
1129                 height: 2.0
1130         },
1131
1132         'users.cpu': {
1133                 height: 2.0
1134         },
1135
1136         'users.preads': {
1137                 height: 2.0
1138         },
1139
1140         'users.pwrites': {
1141                 height: 2.0
1142         },
1143
1144         'groups.cpu': {
1145                 height: 2.0
1146         },
1147
1148         'groups.preads': {
1149                 height: 2.0
1150         },
1151
1152         'groups.pwrites': {
1153                 height: 2.0
1154         },
1155
1156         'tc.qos': {
1157                 heads: [
1158                         function(id) {
1159                                 if(id.match(/.*-ifb$/))
1160                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
1161                                 else
1162                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
1163                         }
1164                 ]
1165         },
1166
1167         'net.net': {
1168                 heads: [
1169                         gaugeChart('Received', '12%', 'received'),
1170                         gaugeChart('Sent', '12%', 'sent')
1171                 ]
1172         },
1173
1174         'disk.util': {
1175                 colors: '#FF5588',
1176                 heads: [
1177                         gaugeChart('Utilization', '12%', '', '#FF5588')
1178                 ]
1179         },
1180
1181         'disk.backlog': {
1182                 colors: '#0099CC'
1183         },
1184
1185         'disk.io': {
1186                 heads: [
1187                         gaugeChart('Read', '12%', 'reads'),
1188                         gaugeChart('Write', '12%', 'writes')
1189                 ]
1190         },
1191
1192         'netfilter.sockets': {
1193                 colors: '#88AA00',
1194                 heads: [
1195                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1196                 ]
1197         },
1198
1199         'netfilter.new': {
1200                 heads: [
1201                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1202                 ]
1203         },
1204
1205         'disk.iotime': {
1206                 height: 0.5
1207         },
1208         'disk.mops': {
1209                 height: 0.5
1210         },
1211         'disk.svctm': {
1212                 height: 0.5
1213         },
1214         'disk.avgsz': {
1215                 height: 0.5
1216         },
1217         'disk.await': {
1218                 height: 0.5
1219         },
1220
1221         'apache.connections': {
1222                 colors: NETDATA.colors[4],
1223                 mainheads: [
1224                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1225                 ]
1226         },
1227
1228         'apache.requests': {
1229                 colors: NETDATA.colors[0],
1230                 mainheads: [
1231                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1232                 ]
1233         },
1234
1235         'apache.net': {
1236                 colors: NETDATA.colors[3],
1237                 mainheads: [
1238                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1239                 ]
1240         },
1241
1242         'apache.workers': {
1243                 mainheads: [
1244                         function(id) {
1245                                 return  '<div data-netdata="' + id + '"'
1246                                         + ' data-dimensions="busy"'
1247                                         + ' data-append-options="percentage"'
1248                                         + ' data-gauge-max-value="100"'
1249                                         + ' data-chart-library="gauge"'
1250                                         + ' data-title="Workers Utilization"'
1251                                         + ' data-units="percentage %"'
1252                                         + ' data-gauge-adjust="width"'
1253                                         + ' data-width="12%"'
1254                                         + ' data-before="0"'
1255                                         + ' data-after="-CHART_DURATION"'
1256                                         + ' data-points="CHART_DURATION"'
1257                                         + ' role="application"></div>';
1258                         }
1259                 ]
1260         },
1261
1262         'apache.bytesperreq': {
1263                 colors: NETDATA.colors[3],
1264                 height: 0.5
1265         },
1266
1267         'apache.reqpersec': {
1268                 colors: NETDATA.colors[4],
1269                 height: 0.5
1270         },
1271
1272         'apache.bytespersec': {
1273                 colors: NETDATA.colors[6],
1274                 height: 0.5
1275         },
1276
1277         'nginx.connections': {
1278                 colors: NETDATA.colors[4],
1279                 mainheads: [
1280                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1281                 ]
1282         },
1283
1284         'nginx.requests': {
1285                 colors: NETDATA.colors[0],
1286                 mainheads: [
1287                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1288                 ]
1289         }
1290 };
1291
1292 function anyAttribute(obj, attr, key, def) {
1293         if(typeof obj[key] !== 'undefined') {
1294                 if(typeof obj[key][attr] !== 'undefined')
1295                         return obj[key][attr];
1296         }
1297         return def;
1298 }
1299
1300 function menuTitle(menu) {
1301         return anyAttribute(menuData, 'title', menu, menu);
1302 }
1303
1304 function menuInfo(menu) {
1305         return anyAttribute(menuData, 'info', menu, null);
1306 }
1307
1308 function menuHeight(menu, relative) {
1309         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1310 }
1311
1312 function submenuTitle(menu, submenu) {
1313         var key = menu + '.' + submenu;
1314         return anyAttribute(submenuData, 'title', key, submenu);
1315 }
1316
1317 function submenuInfo(menu, submenu) {
1318         var key = menu + '.' + submenu;
1319         return anyAttribute(submenuData, 'info', key, null);
1320 }
1321
1322 function submenuHeight(menu, submenu, relative) {
1323         var key = menu + '.' + submenu;
1324         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1325 }
1326
1327
1328 function chartInfo(id) {
1329         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1330                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1331         else
1332                 return '';
1333 }
1334
1335 function chartHeight(id, def) {
1336         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1337                 return def * chartData[id].height;
1338         else
1339                 return def;
1340 }
1341
1342
1343 // ----------------------------------------------------------------------------
1344
1345 // enrich the data structure returned by netdata
1346 // to reflect our menu system and content
1347 function enrichChartData(chart) {
1348         var tmp = chart.type.split('_')[0];
1349
1350         switch(tmp) {
1351                 case 'ap':
1352                 case 'net':
1353                 case 'disk':
1354                         chart.menu = tmp;
1355                         break;
1356
1357                 case 'tc':
1358                         chart.menu = tmp;
1359
1360                         // find a name for this device from fireqos info
1361                         // we strip '_(in|out)' or '(in|out)_'
1362                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family) {
1363                                 var n = chart.name.split('.')[1];
1364                                 if(n.endsWith('_in'))
1365                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_in'));
1366                                 else if(n.endsWith('_out'))
1367                                         options.submenu_names[chart.family] = n.slice(0, n.lastIndexOf('_out'));
1368                                 else if(n.startsWith('in_'))
1369                                         options.submenu_names[chart.family] = n.slice(3, n.length);
1370                                 else if(n.startsWith('out_'))
1371                                         options.submenu_names[chart.family] = n.slice(4, n.length);
1372                         }
1373
1374                         // increase the priority of IFB devices
1375                         // to have inbound appear before outbound
1376                         if(chart.id.match(/.*-ifb$/))
1377                                 chart.priority--;
1378
1379                         break;
1380
1381                 default:
1382                         chart.menu = chart.type;
1383                         break;
1384         }
1385
1386         chart.submenu = chart.family;
1387 }
1388
1389 // ----------------------------------------------------------------------------
1390
1391 function name2id(s) {
1392         return s
1393                 .replace(' ', '_')
1394                 .replace('(', '_')
1395                 .replace(')', '_')
1396                 .replace('.', '_')
1397                 .replace('/', '_');
1398 }
1399
1400 function headMain(charts, duration) {
1401         var head = '';
1402
1403         if(typeof charts['system.swap'] !== 'undefined')
1404                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1405                 + ' data-dimensions="free"'
1406                 + ' data-append-options="percentage"'
1407                 + ' data-chart-library="easypiechart"'
1408                 + ' data-title="Free Swap"'
1409                 + ' data-units="%"'
1410                 + ' data-easypiechart-max-value="100"'
1411                 + ' data-width="8%"'
1412                 + ' data-before="0"'
1413                 + ' data-after="-' + duration.toString() + '"'
1414                 + ' data-points="' + duration.toString() + '"'
1415                 + ' data-colors="#DD4400"'
1416                 + ' role="application"></div>';
1417
1418         if(typeof charts['system.io'] !== 'undefined') {
1419                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1420                 + ' data-dimensions="in"'
1421                 + ' data-chart-library="easypiechart"'
1422                 + ' data-title="Disk Read"'
1423                 + ' data-units="KB / s"'
1424                 + ' data-width="10%"'
1425                 + ' data-before="0"'
1426                 + ' data-after="-' + duration.toString() + '"'
1427                 + ' data-points="' + duration.toString() + '"'
1428                 + ' role="application"></div>';
1429
1430                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1431                 + ' data-dimensions="out"'
1432                 + ' data-chart-library="easypiechart"'
1433                 + ' data-title="Disk Write"'
1434                 + ' data-units="KB / s"'
1435                 + ' data-width="10%"'
1436                 + ' data-before="0"'
1437                 + ' data-after="-' + duration.toString() + '"'
1438                 + ' data-points="' + duration.toString() + '"'
1439                 + ' role="application"></div>';
1440         }
1441
1442         if(typeof charts['system.cpu'] !== 'undefined')
1443                 head += '<div data-netdata="system.cpu"'
1444                 + ' data-chart-library="gauge"'
1445                 + ' data-title="CPU"'
1446                 + ' data-units="%"'
1447                 + ' data-gauge-max-value="100"'
1448                 + ' data-width="18%"'
1449                 + ' data-after="-' + duration.toString() + '"'
1450                 + ' data-points="' + duration.toString() + '"'
1451                 + ' data-colors="' + NETDATA.colors[12] + '"'
1452                 + ' role="application"></div>';
1453
1454         if(typeof charts['system.ipv4'] !== 'undefined') {
1455                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1456                 + ' data-dimensions="received"'
1457                 + ' data-chart-library="easypiechart"'
1458                 + ' data-title="IPv4 Inbound"'
1459                 + ' data-units="kbps"'
1460                 + ' data-width="10%"'
1461                 + ' data-before="0"'
1462                 + ' data-after="-' + duration.toString() + '"'
1463                 + ' data-points="' + duration.toString() + '"'
1464                 + ' role="application"></div>';
1465
1466                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1467                 + ' data-dimensions="sent"'
1468                 + ' data-chart-library="easypiechart"'
1469                 + ' data-title="IPv4 Outbound"'
1470                 + ' data-units="kbps"'
1471                 + ' data-width="10%"'
1472                 + ' data-before="0"'
1473                 + ' data-after="-' + duration.toString() + '"'
1474                 + ' data-points="' + duration.toString() + '"'
1475                 + ' role="application"></div>';
1476         }
1477         else if(typeof charts['system.ipv6'] !== 'undefined') {
1478                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1479                 + ' data-dimensions="received"'
1480                 + ' data-chart-library="easypiechart"'
1481                 + ' data-title="IPv6 Inbound"'
1482                 + ' data-units="kbps"'
1483                 + ' data-width="10%"'
1484                 + ' data-before="0"'
1485                 + ' data-after="-' + duration.toString() + '"'
1486                 + ' data-points="' + duration.toString() + '"'
1487                 + ' role="application"></div>';
1488
1489                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1490                 + ' data-dimensions="sent"'
1491                 + ' data-chart-library="easypiechart"'
1492                 + ' data-title="IPv6 Outbound"'
1493                 + ' data-units="kbps"'
1494                 + ' data-width="10%"'
1495                 + ' data-before="0"'
1496                 + ' data-after="-' + duration.toString() + '"'
1497                 + ' data-points="' + duration.toString() + '"'
1498                 + ' role="application"></div>';
1499         }
1500
1501         if(typeof charts['system.ram'] !== 'undefined')
1502                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1503                 + ' data-dimensions="cached|free"'
1504                 + ' data-append-options="percentage"'
1505                 + ' data-chart-library="easypiechart"'
1506                 + ' data-title="Available RAM"'
1507                 + ' data-units="%"'
1508                 + ' data-easypiechart-max-value="100"'
1509                 + ' data-width="8%"'
1510                 + ' data-after="-' + duration.toString() + '"'
1511                 + ' data-points="' + duration.toString() + '"'
1512                 + ' data-colors="' + NETDATA.colors[7] + '"'
1513                 + ' role="application"></div>';
1514
1515         return head;
1516 }
1517
1518 function generateHeadCharts(type, chart, duration) {
1519         var head = '';
1520         var hcharts = anyAttribute(chartData, type, chart.context, []);
1521         if(hcharts.length > 0) {
1522                 var hi = 0, hlen = hcharts.length;
1523                 while(hi < hlen) {
1524                         if(typeof hcharts[hi] === 'function')
1525                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1526                         else
1527                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1528                         hi++;
1529                 }
1530         }
1531         return head;
1532 }
1533
1534 function renderPage(menus, data) {
1535         var div = document.getElementById('charts_div');
1536         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1537
1538         // find the proper duration for per-second updates
1539         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1540         var html = '';
1541         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
1542         var mainhead = headMain(data.charts, duration);
1543
1544         // sort the menus
1545         var main = sortObjectByPriority(menus);
1546         var i = 0, len = main.length;
1547         while(i < len) {
1548                 var menu = main[i++];
1549
1550                 // generate an entry at the main menu
1551
1552                 sidebar += '<li class=""><a href="#' + menu + '">' + menus[menu].title + '</a><ul class="nav">';
1553                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menu + '" role="heading">' + menus[menu].title + '</h1></div><div id="' + menu + '" role="document">';
1554
1555                 if(menus[menu].info !== null)
1556                         html += menus[menu].info;
1557
1558                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
1559
1560                 var shtml = '';
1561                 var mhead = '<div style="width: 100%; text-align: center;">' + mainhead;
1562                 mainhead = '';
1563
1564                 // sort the submenus of this menu
1565                 var sub = sortObjectByPriority(menus[menu].submenus);
1566                 var si = 0, slen = sub.length;
1567                 while(si < slen) {
1568                         var submenu = sub[si++];
1569
1570                         // generate an entry at the submenu
1571                         sidebar += '<li class><a href="#' + name2id(menu + '_' + submenu) + '">' + menus[menu].submenus[submenu].title + '</a></li>';
1572                         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>';
1573
1574                         if(menus[menu].submenus[submenu].info !== null)
1575                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
1576
1577                         var head = '<div style="width: 100%; text-align: center;">';
1578                         var chtml = '';
1579
1580                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
1581
1582                         // sort the charts in this submenu of this menu
1583                         menus[menu].submenus[submenu].charts.sort(prioritySort);
1584                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
1585                         while(ci < clen) {
1586                                 var chart = menus[menu].submenus[submenu].charts[ci++];
1587
1588                                 // generate the submenu heading charts
1589                                 mhead += generateHeadCharts('mainheads', chart, duration);
1590                                 head += generateHeadCharts('heads', chart, duration);
1591
1592                                 // generate the chart
1593                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
1594                                         + ' data-width="' + pcent_width.toString() + '%"'
1595                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
1596                                         + ' data-before="0"'
1597                                         + ' data-after="-' + duration.toString() + '"'
1598                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
1599                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
1600                                         + ' role="application"></div>';
1601
1602                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
1603                         }
1604
1605                         head += '</div>';
1606                         shtml += head + chtml + '</div>';
1607                 }
1608
1609                 mhead += '</div>';
1610                 sidebar += '</ul></li>';
1611                 html += mhead + shtml + '</div></div><hr role="separator"/>';
1612         }
1613
1614         sidebar += '</ul>';
1615         div.innerHTML = html;
1616         document.getElementById('sidebar').innerHTML = sidebar;
1617         finalizePage();
1618 }
1619
1620 function renderChartsAndMenu(data) {
1621         var menus = {};
1622         var charts = data.charts;
1623
1624         for(var c in charts) {
1625                 enrichChartData(charts[c]);
1626
1627                 // create the menu
1628                 if(typeof menus[charts[c].menu] === 'undefined') {
1629                         menus[charts[c].menu] = {
1630                                 priority: charts[c].priority,
1631                                 submenus: {},
1632                                 title: menuTitle(charts[c].menu),
1633                                 info: menuInfo(charts[c].menu),
1634                                 height: menuHeight(charts[c].menu, options.chartsHeight)
1635                         };
1636                 }
1637
1638                 if(charts[c].priority < menus[charts[c].menu].priority)
1639                         menus[charts[c].menu].priority = charts[c].priority;
1640
1641                 // create the submenu
1642                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
1643                         menus[charts[c].menu].submenus[charts[c].submenu] = {
1644                                 priority: charts[c].priority,
1645                                 charts: new Array(),
1646                                 title: null,
1647                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
1648                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
1649                         };
1650                 }
1651
1652                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
1653                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
1654
1655                 // index the chart in the menu/submenu
1656                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
1657         }
1658
1659         for(var m in menus) {
1660                 for(var s in menus[m].submenus) {
1661                         // set the family using a name
1662                         if(typeof options.submenu_names[s] !== 'undefined') {
1663                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
1664                         }
1665                         else {
1666                                 menus[m].submenus[s].title = submenuTitle(m, s);
1667                         }
1668                 }
1669         }
1670
1671         renderPage(menus, data);
1672 }
1673
1674 function downloadAllCharts(netdata_url) {
1675         if(typeof netdata_url === 'undefined' || netdata_url === null)
1676                 netdata_url = NETDATA.serverDefault;
1677
1678         NETDATA.pause(function() {
1679
1680                 // download all the charts the server knows
1681                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
1682
1683                         options.data = data;
1684                         options.hostname = data.hostname;
1685                         document.getElementById('hostname').innerHTML = options.hostname;
1686                         document.getElementById('hostname').href = NETDATA.serverDefault;
1687                         document.title = options.hostname + ' dashboard';
1688
1689                         renderChartsAndMenu(data);
1690
1691                         // prepare our DOM
1692 //                      prepareScreen(data);
1693
1694                         // due to affix issues, prepareScreen() will unpause
1695                         // netdata as needed
1696                 });
1697         });
1698 }
1699
1700 // ----------------------------------------------------------------------------
1701
1702 function versionLog(msg) {
1703         document.getElementById('versionCheckLog').innerHTML = msg;
1704 }
1705
1706 function getNetdataVersion(callback) {
1707         versionLog('Downloading installed version info from netdata...');
1708
1709         $.ajax({
1710                 url: 'version.txt',
1711                 async: true,
1712                 cache: false
1713         })
1714         .done(function(data) {
1715                 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
1716                 if(data.length !== 40) {
1717                         versionLog('Received version string is invalid.');
1718                         callback(null);
1719                 }
1720                 else {
1721                         versionLog('Installed version of netdata is ' + data);
1722                         document.getElementById('netdataVersion').innerHTML = data;
1723                         callback(data);
1724                 }
1725         })
1726         .fail(function() {
1727                 versionLog('Failed to download installed version info from netdata!');
1728                 callback(null);
1729         });
1730 }
1731
1732 function getGithubLatestCommit(callback) {
1733         versionLog('Downloading latest version info from github...');
1734
1735         $.ajax({
1736                 url: 'https://api.github.com/repos/firehol/netdata/commits',
1737                 async: true,
1738                 cache: false
1739         })
1740         .done(function(data) {
1741                 versionLog('Latest version info from github is ' + data[0].sha);
1742                 callback(data[0].sha);
1743         })
1744         .fail(function() {
1745                 versionLog('Failed to download installed version info from github!');
1746                 callback(null);
1747         });
1748 }
1749
1750 function checkForUpdate(callback) {
1751         getNetdataVersion(function(sha1) {
1752                 if(sha1 === null) callback(null, null);
1753
1754                 getGithubLatestCommit(function(sha2) {
1755                         callback(sha1, sha2);
1756                 });
1757         });
1758
1759         return null;
1760 }
1761
1762 var updateBlinkCounter = 0;
1763 function notifyForUpdate(force) {
1764         versionLog('<p>checking for updates...</p>');
1765
1766         var now = new Date().getTime();
1767
1768         if(typeof force === 'undefined' || force !== true) {
1769                 var last = loadLocalStorage('last_update_check');
1770
1771                 if(typeof last === 'string')
1772                         last = parseInt(last);
1773                 else
1774                         last = 0;
1775
1776                 if(now - last < 3600000 * 8) {
1777                         // no need to check it - too soon
1778                         return;
1779                 }
1780         }
1781
1782         checkForUpdate(function(sha1, sha2) {
1783                 var save = false;
1784
1785                 if(sha1 === null) {
1786                         save = false;
1787                         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>');
1788                 }
1789                 else if(sha2 === null) {
1790                         save = false;
1791                         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>');
1792                 }
1793                 else if(sha1 === sha2) {
1794                         save = true;
1795                         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>');
1796                 }
1797                 else {
1798                         save = true;
1799                         var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
1800
1801                         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>');
1802
1803                         function updateButtonBlink() {
1804                                 updateBlinkCounter--;
1805                                 if(updateBlinkCounter > 0)
1806                                         $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
1807                         }
1808
1809                         if(updateBlinkCounter === 0) {
1810                                 updateBlinkCounter = 300;
1811                                 updateButtonBlink();
1812                         }
1813                 }
1814
1815                 if(save)
1816                         saveLocalStorage('last_update_check', now.toString());
1817         });
1818 }
1819
1820 // ----------------------------------------------------------------------------
1821
1822 function getUrlParameter(sParam) {
1823     var sPageURL = decodeURIComponent(window.location.search.substring(1)),
1824         sURLVariables = sPageURL.split('&'),
1825         sParameterName,
1826         i;
1827
1828     for (i = 0; i < sURLVariables.length; i++) {
1829         sParameterName = sURLVariables[i].split('=');
1830
1831         if (sParameterName[0] === sParam) {
1832             return sParameterName[1] === undefined ? true : sParameterName[1];
1833         }
1834     }
1835 }
1836
1837 function finalizePage() {
1838         // resize all charts - without starting the background thread
1839         // this has to be done while NETDATA is paused
1840         // if we ommit this, the affix menu will be wrong, since all
1841         // the Dom elements are initially zero-sized
1842         NETDATA.parseDom();
1843
1844         var before = 0, after = 0;
1845         after = getUrlParameter('force_after_ms');
1846         before = getUrlParameter('force_before_ms');
1847
1848         if(before > 0 && after > 0)
1849                 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
1850
1851         // let it run (update the charts)
1852         NETDATA.unpause();
1853
1854         // check if we have to jump to a specific section
1855         var hash = location.hash.replace('#','');
1856         if(hash != '') {
1857                 // Clear the hash in the URL
1858                 // location.hash = '';   // delete front "//" if you want to change the address bar
1859                 var offset = $(location.hash).offset();
1860                 if(typeof offset !== 'undefined')
1861                         $('html, body').animate({ scrollTop: offset.top }, 0);
1862         }
1863
1864         /* activate bootstrap sidebar (affix) */
1865         $('#sidebar').affix({
1866                 offset: {
1867                         top: (isdemo())?150:0,
1868                         bottom: 0
1869                 }
1870         });
1871
1872         /* fix scrolling of very long affix lists
1873            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
1874          */
1875         $('#sidebar').on('affixed.bs.affix', function() {
1876                 $(this).removeAttr('style');
1877         });
1878
1879         /* activate bootstrap scrollspy (needed for sidebar) */
1880         $(document.body).scrollspy({
1881                 target: '#sidebar',
1882                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
1883         });
1884
1885         document.getElementById('footer').style.display = 'block';
1886
1887
1888         var update_options_modal = function() {
1889                 // console.log('update_options_modal');
1890
1891                 var sync_option = function(option) {
1892                         var self = $('#' + option);
1893
1894                         if(self.prop('checked') !== NETDATA.getOption(option)) {
1895                                 // console.log('switching ' + option.toString());
1896                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
1897                         }
1898                 }
1899
1900                 var theme_sync_option = function(option) {
1901                         var self = $('#' + option);
1902
1903                         self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
1904                 }
1905
1906                 sync_option('eliminate_zero_dimensions');
1907                 sync_option('destroy_on_hide');
1908                 sync_option('parallel_refresher');
1909                 sync_option('concurrent_refreshes');
1910                 sync_option('sync_selection');
1911                 sync_option('sync_pan_and_zoom');
1912                 sync_option('stop_updates_when_focus_is_lost');
1913                 sync_option('smooth_plot');
1914                 sync_option('pan_and_zoom_data_padding');
1915                 sync_option('show_help');
1916                 theme_sync_option('netdata_theme_control');
1917
1918                 if(NETDATA.getOption('parallel_refresher') === false) {
1919                         $('#concurrent_refreshes_row').hide();
1920                 }
1921                 else {
1922                         $('#concurrent_refreshes_row').show();
1923                 }
1924         };
1925         NETDATA.setOption('setOptionCallback', update_options_modal);
1926
1927         // handle options changes
1928         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
1929         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
1930         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
1931         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
1932         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
1933         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
1934         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
1935         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
1936         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
1937         $('#show_help').change(function()                       { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
1938
1939         // this has to be the last
1940         // it reloads the page
1941         $('#netdata_theme_control').change(function() {
1942                 if(setTheme($(this).prop('checked')?'slate':'default'))
1943                         location.reload();
1944         });
1945
1946         if(isdemo()) {
1947                 setTimeout(function() {
1948                         $('#welcomeModal').modal();
1949                 }, 1000);
1950         }
1951         else
1952                 notifyForUpdate();
1953
1954         $('#updateModal').on('shown.bs.modal', function() {
1955                 notifyForUpdate(true);
1956         });
1957 }
1958
1959 function resetDashboardOptions() {
1960         var help = NETDATA.options.current.show_help;
1961
1962         NETDATA.resetOptions();
1963         if(setTheme('slate'))
1964                 location.reload();
1965
1966         if(help !== NETDATA.options.current.show_help)
1967                 location.reload();
1968 }
1969
1970 downloadAllCharts();
1971
1972 </script>
1973
1974 </body>
1975 </html>