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?v30"></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 = document.location.hostname.endsWith('.firehol.org');
 784         return this_is_demo;
 785 }
 786
 787 if(isdemo()) {
 788         document.getElementById('masthead').style.display = 'block';
 789 }
 790
 791 var options = {
 792         sparklines_registry: {},
 793         submenu_names: {},
 794         data: null,
 795         hostname: 'netdata_server', // will be overwritten by the netdata server
 796         categories: new Array(),
 797         categories_idx: {},
 798         families: new Array(),
 799         families_idx: {},
 800
 801         chartsPerRow: 0,
 802         chartsMinWidth: 1450,
 803         chartsHeight: 180,
 804         sparklinesHeight: 60
 805 };
 806
 807 // generate a sparkline
 808 // used in the documentation
 809 function sparkline(chart, dimension, units) {
 810         var key = chart + '.' + dimension;
 811
 812         if(typeof units === 'undefined')
 813                 units = '';
 814
 815         if(typeof options.sparklines_registry[key] === 'undefined')
 816                 options.sparklines_registry[key] = { count: 1 };
 817         else
 818                 options.sparklines_registry[key].count++;
 819
 820         key = key + '.' + options.sparklines_registry[key].count;
 821
 822         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 + ')';
 823
 824         return h;
 825 }
 826
 827 function chartsPerRow(total) {
 828         if(options.chartsPerRow === 0) {
 829                 width = Math.floor(total / options.chartsMinWidth);
 830                 if(width === 0) width = 1;
 831                 return width;
 832         }
 833         else return options.chartsPerRow;
 834 }
 835
 836 function prioritySort(a, b) {
 837         if(a.priority < b.priority) return -1;
 838         if(a.priority > b.priority) return 1;
 839         if(a.name < b.name) return -1;
 840         return 1;
 841 }
 842
 843 function sortObjectByPriority(object) {
 844         var idx = {};
 845         var sorted = new Array();
 846
 847         for(var i in object) {
 848                 if(typeof idx[i] === 'undefined') {
 849                         idx[i] = object[i];
 850                         sorted.push(i);
 851                 }
 852         }
 853
 854         sorted.sort(function(a, b) {
 855                 if(idx[a].priority < idx[b].priority) return -1;
 856                 if(idx[a].priority > idx[b].priority) return 1;
 857                 if(a < b) return -1;
 858                 return 1;
 859         });
 860
 861         return sorted;
 862 }
 863
 864 // ----------------------------------------------------------------------------
 865
 866 function gaugeChart(title, width, dimensions, colors) {
 867         if(typeof colors === 'undefined')
 868                 colors = '';
 869
 870         if(typeof dimensions === 'undefined')
 871                 dimensions = '';
 872
 873         return '<div data-netdata="CHART_UNIQUE_ID"'
 874                                                         + ' data-dimensions="' + dimensions + '"'
 875                                                         + ' data-chart-library="gauge"'
 876                                                         + ' data-gauge-adjust="width"'
 877                                                         + ' data-title="' + title + '"'
 878                                                         + ' data-width="' + width + '"'
 879                                                         + ' data-before="0"'
 880                                                         + ' data-after="-CHART_DURATION"'
 881                                                         + ' data-points="CHART_DURATION"'
 882                                                         + ' data-colors="' + colors + '"'
 883                                                         + ' role="application"></div>';
 884 }
 885
 886 // ----------------------------------------------------------------------------
 887
 888 var menuData = {
 889         'system': {
 890                 title: 'System Overview',
 891                 info: 'Overview of the key system metrics.'
 892         },
 893
 894         'ap': {
 895                 title: 'Access Points',
 896                 info: undefined
 897         },
 898
 899         'tc': {
 900                 title: 'Quality of Service',
 901                 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).'
 902         },
 903
 904         'net': {
 905                 title: 'Network Interfaces',
 906                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
 907         },
 908
 909         'ipv4': {
 910                 title: 'IPv4 Networking',
 911                 info: undefined
 912         },
 913
 914         'ipv6': {
 915                 title: 'IPv6 Networking',
 916                 info: undefined
 917         },
 918
 919         'ipvs': {
 920                 title: 'IP Virtual Server',
 921                 info: undefined
 922         },
 923
 924         'netfilter': {
 925                 title: 'Firewall (netfilter)',
 926                 info: undefined
 927         },
 928
 929         'cpu': {
 930                 title: 'CPUs',
 931                 info: undefined
 932         },
 933
 934         'mem': {
 935                 title: 'Memory',
 936                 info: undefined
 937         },
 938
 939         'disk': {
 940                 title: 'Disks',
 941                 info: undefined
 942         },
 943
 944         'sensors': {
 945                 title: 'Sensors',
 946                 info: undefined
 947         },
 948
 949         'nfsd': {
 950                 title: 'File Server (nfsd)',
 951                 info: undefined
 952         },
 953
 954         'apps': {
 955                 title: 'Applications',
 956                 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>.',
 957                 height: 1.5
 958         },
 959
 960         'users': {
 961                 title: 'Users',
 962                 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>.',
 963                 height: 1.5
 964         },
 965
 966         'groups': {
 967                 title: 'User Groups',
 968                 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>.',
 969                 height: 1.5
 970         },
 971
 972         'netdata': {
 973                 title: 'Netdata Monitoring',
 974                 info: undefined
 975         },
 976
 977         'example': {
 978                 title: 'Example Charts',
 979                 info: undefined
 980         },
 981 };
 982
 983 var submenuData = {
 984         'mem.ksm': {
 985                 title: 'Memory Deduper',
 986                 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.'
 987         },
 988
 989         'netfilter.conntrack': {
 990                 title: 'Connection Tracker',
 991                 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.'
 992         },
 993
 994         'netfilter.nfacct': {
 995                 title: 'Bandwidth Accounting',
 996                 info: 'The following information is read using the <code>nfacct.plugin</code>.'
 997         },
 998
 999         'netfilter.synproxy': {
1000                 title: 'DDoS Protection',
1001                 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.'
1002         }
1003 };
1004
1005 var chartData = {
1006         'system.cpu': {
1007                 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.'
1008         },
1009
1010         'system.load': {
1011                 info: 'Current system load read from <code>/proc/loadavg</code>.',
1012                 height: 0.7
1013         },
1014
1015         'system.io': {
1016                 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.'
1017         },
1018
1019         'system.swapio': {
1020                 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).'
1021         },
1022
1023         'system.pgfaults': {
1024                 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.'
1025         },
1026
1027         'system.entropy': {
1028                 colors: '#CC22AA',
1029                 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.'
1030         },
1031
1032         'system.forks': {
1033                 colors: '#5555DD',
1034                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
1035         },
1036
1037         'system.intr': {
1038                 colors: '#DD5555',
1039                 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.'
1040         },
1041
1042         'system.interrupts': {
1043                 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.'
1044         },
1045
1046         'system.softirqs': {
1047                 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.'
1048         },
1049
1050         'system.processes': {
1051                 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.'
1052         },
1053
1054         'system.active_processes': {
1055                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
1056         },
1057
1058         'system.ctxt': {
1059                 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.'
1060         },
1061
1062         'system.idlejitter': {
1063                 colors: '#5555AA',
1064                 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).'
1065         },
1066
1067         'system.ipv4': {
1068                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>.'
1069         },
1070
1071         'system.ipv6': {
1072                 info: 'Total IPv6 Traffic, read from <code>/proc/net/snmp6</code>.'
1073         },
1074
1075         'system.ram': {
1076                 info: 'System memory, read from <code>/proc/meminfo</code>.'
1077         },
1078
1079         'system.swap': {
1080                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
1081         },
1082
1083         'mem.ksm_savings': {
1084                 heads: [
1085                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
1086                 ]
1087         },
1088
1089         'mem.ksm_ratios': {
1090                 heads: [
1091                         function(id) {
1092                                 return  '<div data-netdata="' + id + '"'
1093                                         + ' data-gauge-max-value="100"'
1094                                         + ' data-chart-library="gauge"'
1095                                         + ' data-title="Savings"'
1096                                         + ' data-units="percentage %"'
1097                                         + ' data-gauge-adjust="width"'
1098                                         + ' data-width="12%"'
1099                                         + ' data-before="0"'
1100                                         + ' data-after="-CHART_DURATION"'
1101                                         + ' data-points="CHART_DURATION"'
1102                                         + ' role="application"></div>';
1103                         }
1104                 ]
1105         },
1106
1107         'mem.committed': {
1108                 colors: NETDATA.colors[3]
1109         },
1110
1111         'apps.cpu': {
1112                 height: 2.0
1113         },
1114
1115         'apps.preads': {
1116                 height: 2.0
1117         },
1118
1119         'apps.pwrites': {
1120                 height: 2.0
1121         },
1122
1123         'users.cpu': {
1124                 height: 2.0
1125         },
1126
1127         'users.preads': {
1128                 height: 2.0
1129         },
1130
1131         'users.pwrites': {
1132                 height: 2.0
1133         },
1134
1135         'groups.cpu': {
1136                 height: 2.0
1137         },
1138
1139         'groups.preads': {
1140                 height: 2.0
1141         },
1142
1143         'groups.pwrites': {
1144                 height: 2.0
1145         },
1146
1147         'tc.qos': {
1148                 heads: [
1149                         function(id) {
1150                                 if(id.match(/.*-ifb$/))
1151                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
1152                                 else
1153                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
1154                         }
1155                 ]
1156         },
1157
1158         'net.net': {
1159                 heads: [
1160                         gaugeChart('Received', '12%', 'received'),
1161                         gaugeChart('Sent', '12%', 'sent')
1162                 ]
1163         },
1164
1165         'disk.util': {
1166                 colors: '#FF5588',
1167                 heads: [
1168                         gaugeChart('Utilization', '12%', '', '#FF5588')
1169                 ]
1170         },
1171
1172         'disk.backlog': {
1173                 colors: '#0099CC'
1174         },
1175
1176         'disk.io': {
1177                 heads: [
1178                         gaugeChart('Read', '12%', 'reads'),
1179                         gaugeChart('Write', '12%', 'writes')
1180                 ]
1181         },
1182
1183         'netfilter.sockets': {
1184                 colors: '#88AA00',
1185                 heads: [
1186                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1187                 ]
1188         },
1189
1190         'netfilter.new': {
1191                 heads: [
1192                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1193                 ]
1194         },
1195
1196         'disk.iotime': {
1197                 height: 0.5
1198         },
1199         'disk.mops': {
1200                 height: 0.5
1201         },
1202         'disk.svctm': {
1203                 height: 0.5
1204         },
1205         'disk.avgsz': {
1206                 height: 0.5
1207         },
1208         'disk.await': {
1209                 height: 0.5
1210         },
1211
1212         'apache.connections': {
1213                 colors: NETDATA.colors[4],
1214                 mainheads: [
1215                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1216                 ]
1217         },
1218
1219         'apache.requests': {
1220                 colors: NETDATA.colors[0],
1221                 mainheads: [
1222                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1223                 ]
1224         },
1225
1226         'apache.net': {
1227                 colors: NETDATA.colors[3],
1228                 mainheads: [
1229                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1230                 ]
1231         },
1232
1233         'apache.workers': {
1234                 mainheads: [
1235                         function(id) {
1236                                 return  '<div data-netdata="' + id + '"'
1237                                         + ' data-dimensions="busy"'
1238                                         + ' data-append-options="percentage"'
1239                                         + ' data-gauge-max-value="100"'
1240                                         + ' data-chart-library="gauge"'
1241                                         + ' data-title="Workers Utilization"'
1242                                         + ' data-units="percentage %"'
1243                                         + ' data-gauge-adjust="width"'
1244                                         + ' data-width="12%"'
1245                                         + ' data-before="0"'
1246                                         + ' data-after="-CHART_DURATION"'
1247                                         + ' data-points="CHART_DURATION"'
1248                                         + ' role="application"></div>';
1249                         }
1250                 ]
1251         },
1252
1253         'apache.bytesperreq': {
1254                 colors: NETDATA.colors[3],
1255                 height: 0.5
1256         },
1257
1258         'apache.reqpersec': {
1259                 colors: NETDATA.colors[4],
1260                 height: 0.5
1261         },
1262
1263         'apache.bytespersec': {
1264                 colors: NETDATA.colors[6],
1265                 height: 0.5
1266         },
1267
1268         'nginx.connections': {
1269                 colors: NETDATA.colors[4],
1270                 mainheads: [
1271                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1272                 ]
1273         },
1274
1275         'nginx.requests': {
1276                 colors: NETDATA.colors[0],
1277                 mainheads: [
1278                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1279                 ]
1280         }
1281 };
1282
1283 function anyAttribute(obj, attr, key, def) {
1284         if(typeof obj[key] !== 'undefined') {
1285                 if(typeof obj[key][attr] !== 'undefined')
1286                         return obj[key][attr];
1287         }
1288         return def;
1289 }
1290
1291 function menuTitle(menu) {
1292         return anyAttribute(menuData, 'title', menu, menu);
1293 }
1294
1295 function menuInfo(menu) {
1296         return anyAttribute(menuData, 'info', menu, null);
1297 }
1298
1299 function menuHeight(menu, relative) {
1300         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1301 }
1302
1303 function submenuTitle(menu, submenu) {
1304         var key = menu + '.' + submenu;
1305         return anyAttribute(submenuData, 'title', key, submenu);
1306 }
1307
1308 function submenuInfo(menu, submenu) {
1309         var key = menu + '.' + submenu;
1310         return anyAttribute(submenuData, 'info', key, null);
1311 }
1312
1313 function submenuHeight(menu, submenu, relative) {
1314         var key = menu + '.' + submenu;
1315         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1316 }
1317
1318
1319 function chartInfo(id) {
1320         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1321                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1322         else
1323                 return '';
1324 }
1325
1326 function chartHeight(id, def) {
1327         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1328                 return def * chartData[id].height;
1329         else
1330                 return def;
1331 }
1332
1333
1334 // ----------------------------------------------------------------------------
1335
1336 // enrich the data structure returned by netdata
1337 // to reflect our menu system and content
1338 function enrichChartData(chart) {
1339         var tmp = chart.type.split('_')[0];
1340
1341         switch(tmp) {
1342                 case 'ap':
1343                 case 'net':
1344                 case 'disk':
1345                         chart.menu = tmp;
1346                         break;
1347
1348                 case 'tc':
1349                         chart.menu = tmp;
1350
1351                         // find the interface name from the name
1352                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family)
1353                                 options.submenu_names[chart.family] = chart.name.split('.')[1].split('_')[0];
1354
1355                         // increase the priority of IFB devices
1356                         if(chart.id.match(/.*-ifb$/))
1357                                 chart.priority--;
1358
1359                         break;
1360
1361                 default:
1362                         chart.menu = chart.type;
1363                         break;
1364         }
1365
1366         chart.submenu = chart.family;
1367 }
1368
1369 // ----------------------------------------------------------------------------
1370
1371 function name2id(s) {
1372         return s
1373                 .replace(' ', '_')
1374                 .replace('(', '_')
1375                 .replace(')', '_')
1376                 .replace('.', '_')
1377                 .replace('/', '_');
1378 }
1379
1380 function headMain(charts, duration) {
1381         var head = '';
1382
1383         if(typeof charts['system.swap'] !== 'undefined')
1384                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1385                 + ' data-dimensions="free"'
1386                 + ' data-append-options="percentage"'
1387                 + ' data-chart-library="easypiechart"'
1388                 + ' data-title="Free Swap"'
1389                 + ' data-units="%"'
1390                 + ' data-easypiechart-max-value="100"'
1391                 + ' data-width="8%"'
1392                 + ' data-before="0"'
1393                 + ' data-after="-' + duration.toString() + '"'
1394                 + ' data-points="' + duration.toString() + '"'
1395                 + ' data-colors="#DD4400"'
1396                 + ' role="application"></div>';
1397
1398         if(typeof charts['system.io'] !== 'undefined') {
1399                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1400                 + ' data-dimensions="in"'
1401                 + ' data-chart-library="easypiechart"'
1402                 + ' data-title="Disk Read"'
1403                 + ' data-units="KB / s"'
1404                 + ' data-width="10%"'
1405                 + ' data-before="0"'
1406                 + ' data-after="-' + duration.toString() + '"'
1407                 + ' data-points="' + duration.toString() + '"'
1408                 + ' role="application"></div>';
1409
1410                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1411                 + ' data-dimensions="out"'
1412                 + ' data-chart-library="easypiechart"'
1413                 + ' data-title="Disk Write"'
1414                 + ' data-units="KB / s"'
1415                 + ' data-width="10%"'
1416                 + ' data-before="0"'
1417                 + ' data-after="-' + duration.toString() + '"'
1418                 + ' data-points="' + duration.toString() + '"'
1419                 + ' role="application"></div>';
1420         }
1421
1422         if(typeof charts['system.cpu'] !== 'undefined')
1423                 head += '<div data-netdata="system.cpu"'
1424                 + ' data-chart-library="gauge"'
1425                 + ' data-title="CPU"'
1426                 + ' data-units="%"'
1427                 + ' data-gauge-max-value="100"'
1428                 + ' data-width="18%"'
1429                 + ' data-after="-' + duration.toString() + '"'
1430                 + ' data-points="' + duration.toString() + '"'
1431                 + ' data-colors="' + NETDATA.colors[12] + '"'
1432                 + ' role="application"></div>';
1433
1434         if(typeof charts['system.ipv4'] !== 'undefined') {
1435                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1436                 + ' data-dimensions="received"'
1437                 + ' data-chart-library="easypiechart"'
1438                 + ' data-title="IPv4 Inbound"'
1439                 + ' data-units="kbps"'
1440                 + ' data-width="10%"'
1441                 + ' data-before="0"'
1442                 + ' data-after="-' + duration.toString() + '"'
1443                 + ' data-points="' + duration.toString() + '"'
1444                 + ' role="application"></div>';
1445
1446                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1447                 + ' data-dimensions="sent"'
1448                 + ' data-chart-library="easypiechart"'
1449                 + ' data-title="IPv4 Outbound"'
1450                 + ' data-units="kbps"'
1451                 + ' data-width="10%"'
1452                 + ' data-before="0"'
1453                 + ' data-after="-' + duration.toString() + '"'
1454                 + ' data-points="' + duration.toString() + '"'
1455                 + ' role="application"></div>';
1456         }
1457         else if(typeof charts['system.ipv6'] !== 'undefined') {
1458                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1459                 + ' data-dimensions="received"'
1460                 + ' data-chart-library="easypiechart"'
1461                 + ' data-title="IPv6 Inbound"'
1462                 + ' data-units="kbps"'
1463                 + ' data-width="10%"'
1464                 + ' data-before="0"'
1465                 + ' data-after="-' + duration.toString() + '"'
1466                 + ' data-points="' + duration.toString() + '"'
1467                 + ' role="application"></div>';
1468
1469                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv6"'
1470                 + ' data-dimensions="sent"'
1471                 + ' data-chart-library="easypiechart"'
1472                 + ' data-title="IPv6 Outbound"'
1473                 + ' data-units="kbps"'
1474                 + ' data-width="10%"'
1475                 + ' data-before="0"'
1476                 + ' data-after="-' + duration.toString() + '"'
1477                 + ' data-points="' + duration.toString() + '"'
1478                 + ' role="application"></div>';
1479         }
1480
1481         if(typeof charts['system.ram'] !== 'undefined')
1482                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1483                 + ' data-dimensions="cached|free"'
1484                 + ' data-append-options="percentage"'
1485                 + ' data-chart-library="easypiechart"'
1486                 + ' data-title="Available RAM"'
1487                 + ' data-units="%"'
1488                 + ' data-easypiechart-max-value="100"'
1489                 + ' data-width="8%"'
1490                 + ' data-after="-' + duration.toString() + '"'
1491                 + ' data-points="' + duration.toString() + '"'
1492                 + ' data-colors="' + NETDATA.colors[7] + '"'
1493                 + ' role="application"></div>';
1494
1495         return head;
1496 }
1497
1498 function generateHeadCharts(type, chart, duration) {
1499         var head = '';
1500         var hcharts = anyAttribute(chartData, type, chart.context, []);
1501         if(hcharts.length > 0) {
1502                 var hi = 0, hlen = hcharts.length;
1503                 while(hi < hlen) {
1504                         if(typeof hcharts[hi] === 'function')
1505                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1506                         else
1507                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1508                         hi++;
1509                 }
1510         }
1511         return head;
1512 }
1513
1514 function renderPage(menus, data) {
1515         var div = document.getElementById('charts_div');
1516         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1517
1518         // find the proper duration for per-second updates
1519         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1520         var html = '';
1521         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
1522         var mainhead = headMain(data.charts, duration);
1523
1524         // sort the menus
1525         var main = sortObjectByPriority(menus);
1526         var i = 0, len = main.length;
1527         while(i < len) {
1528                 var menu = main[i++];
1529
1530                 // generate an entry at the main menu
1531
1532                 sidebar += '<li class=""><a href="#' + menu + '">' + menus[menu].title + '</a><ul class="nav">';
1533                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menu + '" role="heading">' + menus[menu].title + '</h1></div><div id="' + menu + '" role="document">';
1534
1535                 if(menus[menu].info !== null)
1536                         html += menus[menu].info;
1537
1538                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
1539
1540                 var shtml = '';
1541                 var mhead = '<div style="width: 100%; text-align: center;">' + mainhead;
1542                 mainhead = '';
1543
1544                 // sort the submenus of this menu
1545                 var sub = sortObjectByPriority(menus[menu].submenus);
1546                 var si = 0, slen = sub.length;
1547                 while(si < slen) {
1548                         var submenu = sub[si++];
1549
1550                         // generate an entry at the submenu
1551                         sidebar += '<li class><a href="#' + name2id(menu + '_' + submenu) + '">' + menus[menu].submenus[submenu].title + '</a></li>';
1552                         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>';
1553
1554                         if(menus[menu].submenus[submenu].info !== null)
1555                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
1556
1557                         var head = '<div style="width: 100%; text-align: center;">';
1558                         var chtml = '';
1559
1560                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
1561
1562                         // sort the charts in this submenu of this menu
1563                         menus[menu].submenus[submenu].charts.sort(prioritySort);
1564                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
1565                         while(ci < clen) {
1566                                 var chart = menus[menu].submenus[submenu].charts[ci++];
1567
1568                                 // generate the submenu heading charts
1569                                 mhead += generateHeadCharts('mainheads', chart, duration);
1570                                 head += generateHeadCharts('heads', chart, duration);
1571
1572                                 // generate the chart
1573                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
1574                                         + ' data-width="' + pcent_width.toString() + '%"'
1575                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
1576                                         + ' data-before="0"'
1577                                         + ' data-after="-' + duration.toString() + '"'
1578                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
1579                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
1580                                         + ' role="application"></div>';
1581
1582                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
1583                         }
1584
1585                         head += '</div>';
1586                         shtml += head + chtml + '</div>';
1587                 }
1588
1589                 mhead += '</div>';
1590                 sidebar += '</ul></li>';
1591                 html += mhead + shtml + '</div></div><hr role="separator"/>';
1592         }
1593
1594         sidebar += '</ul>';
1595         div.innerHTML = html;
1596         document.getElementById('sidebar').innerHTML = sidebar;
1597         finalizePage();
1598 }
1599
1600 function renderChartsAndMenu(data) {
1601         var menus = {};
1602         var charts = data.charts;
1603
1604         for(var c in charts) {
1605                 enrichChartData(charts[c]);
1606
1607                 // create the menu
1608                 if(typeof menus[charts[c].menu] === 'undefined') {
1609                         menus[charts[c].menu] = {
1610                                 priority: charts[c].priority,
1611                                 submenus: {},
1612                                 title: menuTitle(charts[c].menu),
1613                                 info: menuInfo(charts[c].menu),
1614                                 height: menuHeight(charts[c].menu, options.chartsHeight)
1615                         };
1616                 }
1617
1618                 if(charts[c].priority < menus[charts[c].menu].priority)
1619                         menus[charts[c].menu].priority = charts[c].priority;
1620
1621                 // create the submenu
1622                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
1623                         menus[charts[c].menu].submenus[charts[c].submenu] = {
1624                                 priority: charts[c].priority,
1625                                 charts: new Array(),
1626                                 title: null,
1627                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
1628                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
1629                         };
1630                 }
1631
1632                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
1633                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
1634
1635                 // index the chart in the menu/submenu
1636                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
1637         }
1638
1639         for(var m in menus) {
1640                 for(var s in menus[m].submenus) {
1641                         // set the family using a name
1642                         if(typeof options.submenu_names[s] !== 'undefined') {
1643                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
1644                         }
1645                         else {
1646                                 menus[m].submenus[s].title = submenuTitle(m, s);
1647                         }
1648                 }
1649         }
1650
1651         renderPage(menus, data);
1652 }
1653
1654 function downloadAllCharts(netdata_url) {
1655         if(typeof netdata_url === 'undefined' || netdata_url === null)
1656                 netdata_url = NETDATA.serverDefault;
1657
1658         NETDATA.pause(function() {
1659
1660                 // download all the charts the server knows
1661                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
1662
1663                         options.data = data;
1664                         options.hostname = data.hostname;
1665                         document.getElementById('hostname').innerHTML = options.hostname;
1666                         document.getElementById('hostname').href = NETDATA.serverDefault;
1667                         document.title = options.hostname + ' dashboard';
1668
1669                         renderChartsAndMenu(data);
1670
1671                         // prepare our DOM
1672 //                      prepareScreen(data);
1673
1674                         // due to affix issues, prepareScreen() will unpause
1675                         // netdata as needed
1676                 });
1677         });
1678 }
1679
1680 // ----------------------------------------------------------------------------
1681
1682 function versionLog(msg) {
1683         document.getElementById('versionCheckLog').innerHTML = msg;
1684 }
1685
1686 function getNetdataVersion(callback) {
1687         versionLog('Downloading installed version info from netdata...');
1688
1689         $.ajax({
1690                 url: 'version.txt',
1691                 async: true,
1692                 cache: false
1693         })
1694         .done(function(data) {
1695                 data = data.replace(/(\r\n|\n|\r| |\t)/gm,"");
1696                 if(data.length !== 40) {
1697                         versionLog('Received version string is invalid.');
1698                         callback(null);
1699                 }
1700                 else {
1701                         versionLog('Installed version of netdata is ' + data);
1702                         document.getElementById('netdataVersion').innerHTML = data;
1703                         callback(data);
1704                 }
1705         })
1706         .fail(function() {
1707                 versionLog('Failed to download installed version info from netdata!');
1708                 callback(null);
1709         });
1710 }
1711
1712 function getGithubLatestCommit(callback) {
1713         versionLog('Downloading latest version info from github...');
1714
1715         $.ajax({
1716                 url: 'https://api.github.com/repos/firehol/netdata/commits',
1717                 async: true,
1718                 cache: false
1719         })
1720         .done(function(data) {
1721                 versionLog('Latest version info from github is ' + data[0].sha);
1722                 callback(data[0].sha);
1723         })
1724         .fail(function() {
1725                 versionLog('Failed to download installed version info from github!');
1726                 callback(null);
1727         });
1728 }
1729
1730 function checkForUpdate(callback) {
1731         getNetdataVersion(function(sha1) {
1732                 if(sha1 === null) callback(null, null);
1733
1734                 getGithubLatestCommit(function(sha2) {
1735                         callback(sha1, sha2);
1736                 });
1737         });
1738
1739         return null;
1740 }
1741
1742 var updateBlinkCounter = 0;
1743 function notifyForUpdate(force) {
1744         versionLog('<p>checking for updates...</p>');
1745
1746         var now = new Date().getTime();
1747
1748         if(typeof force === 'undefined' || force !== true) {
1749                 var last = loadLocalStorage('last_update_check');
1750
1751                 if(typeof last === 'string')
1752                         last = parseInt(last);
1753                 else
1754                         last = 0;
1755
1756                 if(now - last < 3600000 * 8) {
1757                         // no need to check it - too soon
1758                         return;
1759                 }
1760         }
1761
1762         checkForUpdate(function(sha1, sha2) {
1763                 var save = false;
1764
1765                 if(sha1 === null) {
1766                         save = false;
1767                         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>');
1768                 }
1769                 else if(sha2 === null) {
1770                         save = false;
1771                         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>');
1772                 }
1773                 else if(sha1 === sha2) {
1774                         save = true;
1775                         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>');
1776                 }
1777                 else {
1778                         save = true;
1779                         var compare = 'https://github.com/firehol/netdata/compare/' + sha1.toString() + '...' + sha2.toString();
1780
1781                         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>');
1782
1783                         function updateButtonBlink() {
1784                                 updateBlinkCounter--;
1785                                 if(updateBlinkCounter > 0)
1786                                         $('#updateButton').fadeOut(500).fadeIn(500, updateButtonBlink);
1787                         }
1788
1789                         if(updateBlinkCounter === 0) {
1790                                 updateBlinkCounter = 300;
1791                                 updateButtonBlink();
1792                         }
1793                 }
1794
1795                 if(save)
1796                         saveLocalStorage('last_update_check', now.toString());
1797         });
1798 }
1799
1800 // ----------------------------------------------------------------------------
1801
1802 function getUrlParameter(sParam) {
1803     var sPageURL = decodeURIComponent(window.location.search.substring(1)),
1804         sURLVariables = sPageURL.split('&'),
1805         sParameterName,
1806         i;
1807
1808     for (i = 0; i < sURLVariables.length; i++) {
1809         sParameterName = sURLVariables[i].split('=');
1810
1811         if (sParameterName[0] === sParam) {
1812             return sParameterName[1] === undefined ? true : sParameterName[1];
1813         }
1814     }
1815 }
1816
1817 function finalizePage() {
1818         // resize all charts - without starting the background thread
1819         // this has to be done while NETDATA is paused
1820         // if we ommit this, the affix menu will be wrong, since all
1821         // the Dom elements are initially zero-sized
1822         NETDATA.parseDom();
1823
1824         var before = 0, after = 0;
1825         after = getUrlParameter('force_after_ms');
1826         before = getUrlParameter('force_before_ms');
1827
1828         if(before > 0 && after > 0)
1829                 NETDATA.globalPanAndZoom.setMaster(NETDATA.options.targets[0], after, before);
1830
1831         // let it run (update the charts)
1832         NETDATA.unpause();
1833
1834         // check if we have to jump to a specific section
1835         var hash = location.hash.replace('#','');
1836         if(hash != '') {
1837                 // Clear the hash in the URL
1838                 // location.hash = '';   // delete front "//" if you want to change the address bar
1839                 var offset = $(location.hash).offset();
1840                 if(typeof offset !== 'undefined')
1841                         $('html, body').animate({ scrollTop: offset.top }, 0);
1842         }
1843
1844         /* activate bootstrap sidebar (affix) */
1845         $('#sidebar').affix({
1846                 offset: {
1847                         top: (isdemo())?150:0,
1848                         bottom: 0
1849                 }
1850         });
1851
1852         /* fix scrolling of very long affix lists
1853            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
1854          */
1855         $('#sidebar').on('affixed.bs.affix', function() {
1856                 $(this).removeAttr('style');
1857         });
1858
1859         /* activate bootstrap scrollspy (needed for sidebar) */
1860         $(document.body).scrollspy({
1861                 target: '#sidebar',
1862                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
1863         });
1864
1865         document.getElementById('footer').style.display = 'block';
1866
1867
1868         var update_options_modal = function() {
1869                 // console.log('update_options_modal');
1870
1871                 var sync_option = function(option) {
1872                         var self = $('#' + option);
1873
1874                         if(self.prop('checked') !== NETDATA.getOption(option)) {
1875                                 // console.log('switching ' + option.toString());
1876                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
1877                         }
1878                 }
1879
1880                 var theme_sync_option = function(option) {
1881                         var self = $('#' + option);
1882
1883                         self.bootstrapToggle(netdataTheme === 'slate'?'on':'off');
1884                 }
1885
1886                 sync_option('eliminate_zero_dimensions');
1887                 sync_option('destroy_on_hide');
1888                 sync_option('parallel_refresher');
1889                 sync_option('concurrent_refreshes');
1890                 sync_option('sync_selection');
1891                 sync_option('sync_pan_and_zoom');
1892                 sync_option('stop_updates_when_focus_is_lost');
1893                 sync_option('smooth_plot');
1894                 sync_option('pan_and_zoom_data_padding');
1895                 sync_option('show_help');
1896                 theme_sync_option('netdata_theme_control');
1897
1898                 if(NETDATA.getOption('parallel_refresher') === false) {
1899                         $('#concurrent_refreshes_row').hide();
1900                 }
1901                 else {
1902                         $('#concurrent_refreshes_row').show();
1903                 }
1904         };
1905         NETDATA.setOption('setOptionCallback', update_options_modal);
1906
1907         // handle options changes
1908         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
1909         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
1910         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
1911         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
1912         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
1913         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
1914         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
1915         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
1916         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
1917         $('#show_help').change(function()                       { NETDATA.setOption('show_help', $(this).prop('checked')); location.reload(); });
1918
1919         // this has to be the last
1920         // it reloads the page
1921         $('#netdata_theme_control').change(function() {
1922                 if(setTheme($(this).prop('checked')?'slate':'default'))
1923                         location.reload();
1924         });
1925
1926         if(isdemo()) {
1927                 setTimeout(function() {
1928                         $('#welcomeModal').modal();
1929                 }, 1000);
1930         }
1931         else
1932                 notifyForUpdate();
1933
1934         $('#updateModal').on('shown.bs.modal', function() {
1935                 notifyForUpdate(true);
1936         });
1937 }
1938
1939 function resetDashboardOptions() {
1940         var help = NETDATA.options.current.show_help;
1941
1942         NETDATA.resetOptions();
1943         if(setTheme('slate'))
1944                 location.reload();
1945
1946         if(help !== NETDATA.options.current.show_help)
1947                 location.reload();
1948 }
1949
1950 downloadAllCharts();
1951
1952 </script>
1953
1954 </body>
1955 </html>