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 hidding 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         <!-- load the dashboard manager - it will do the rest -->
 284         <script>var netdataTheme = 'slate';</script>
 285         <script type="text/javascript" src="dashboard.js?v25"></script>
 286 </head>
 287
 288 <body data-spy="scroll" data-target="#sidebar">
 289         <nav class="navbar navbar-default navbar-fixed-top" role="banner">
 290                 <div class="container">
 291                         <div class="navbar-header">
 292                                 <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".navbar-collapse">
 293                                         <span class="sr-only">Toggle navigation</span>
 294                                         <span class="icon-bar"></span>
 295                                         <span class="icon-bar"></span>
 296                                         <span class="icon-bar"></span>
 297                                 </button>
 298                                 <a href="/" class="navbar-brand" id="hostname">netdata</a>
 299                         </div>
 300                         <nav class="collapse navbar-collapse navbar-right" role="navigation">
 301                                 <ul class="nav navbar-nav">
 302                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#optionsModal"><i class="fa fa-cog"></i> settings</a></li>
 303                                         <li><a href="https://github.com/firehol/netdata/wiki" class="btn" target="_blank"><i class="fa fa-github"></i> community</a></li>
 304 <!--                                    <li><a href="old/" class="btn" target="_blank"><i class="fa fa-step-backward"></i> old dashboard</a></li> -->
 305                                         <li><a href="#" class="btn" data-toggle="modal" data-target="#helpModal"><i class="fa fa-question-circle"></i> help</a></li>
 306 <!--                                    <li><a href="#sec">Visualize</a></li>
 307                                         <li><a href="#sec">Prototype</a></li>
 308 -->                             </ul>
 309                         </nav>
 310                 </div>
 311         </nav>
 312
 313         <div id="masthead" style="display: none;">
 314                 <div class="container">
 315                         <div class="row">
 316                                 <div class="col-md-7">
 317                                         <h1>Netdata
 318                                                 <p class="lead">Real-time performance monitoring, in the greatest possible detail</p>
 319                                         </h1>
 320                                 </div>
 321                                 <div class="col-md-5">
 322                                         <div class="well well-lg">
 323                                                 <div class="row">
 324                                                 <div class="col-md-6">
 325                                                         <b>Drag</b> charts to pan.
 326                                                         <b>Shift + wheel</b> on them, to zoom in and out.
 327                                                         <b>Double-click</b> on them, to reset.
 328                                                         <b>Hover</b> on them too!
 329                                                         </div>
 330                                                 <div class="col-md-6">
 331                                                         <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>
 332                                                         </div>
 333                                                 </div>
 334                                         </div>
 335                                 </div>
 336                         </div>
 337                 </div>
 338         </div>
 339
 340         <div class="container">
 341                 <div class="row">
 342                         <div class="col-md-10" role="main">
 343                                 <div id="charts_div"></div>
 344                         </div>
 345                         <div class="col-md-2" role="complementary">
 346                                 <nav class="dashboard-sidebar hidden-print hidden-xs hidden-sm" id="sidebar" role="menu"></nav>
 347                         </div>
 348                 </div>
 349         </div>
 350
 351         <div id="footer" class="container" style="display: none;">
 352                 <div class="row">
 353                         <div class="col-md-10" role="main">
 354                                 <div class="p">
 355                                         <big><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a></big><br/>
 356                                         <i class="fa fa-copyright"></i> Copyright 2016, Costa Tsaousis.<br/>
 357                                         Released under <a href="http://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank">GPL v3 or later</a>.<br/>
 358                                 </div>
 359                                 <div class="p">
 360                                         <small>
 361                                                 <a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata</a> re-distributes these software tools:
 362
 363                                                 <i class="fa fa-circle"></i> The excellent <a href="http://dygraphs.com/" target="_blank">Dygraphs.com</a> web chart library,
 364                                                 <i class="fa fa-copyright"></i> Copyright 2009, Dan Vanderkam, <a href="http://dygraphs.com/legal.html" target="_blank">MIT License</a>
 365
 366                                                 <i class="fa fa-circle"></i> <a href="http://omnipotent.net/jquery.sparkline/" target="_blank">jQuery Sparklines</a> web chart library,
 367                                                 <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>
 368
 369                                                 <i class="fa fa-circle"></i> <a href="http://benpickles.github.io/peity/" target="_blank">Peity</a> web chart library,
 370                                                 <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>
 371
 372                                                 <i class="fa fa-circle"></i> <a href="https://rendro.github.io/easy-pie-chart/" target="_blank">Easy Pie Chart</a> web chart library,
 373                                                 <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>
 374
 375                                                 <i class="fa fa-circle"></i> <a href="http://bernii.github.io/gauge.js/" target="_blank">Gauge.js</a> web chart library,
 376                                                 <i class="fa fa-copyright"></i> Copyright, Bernard Kobos, <a href="http://bernii.github.io/gauge.js/" target="_blank">MIT License</a>
 377
 378                                                 <i class="fa fa-circle"></i> <a href="https://jquery.org/" target="_blank">jQuery</a>,
 379                                                 <i class="fa fa-copyright"></i> Copyright 2015, jQuery Foundation, <a href="https://jquery.org/license/" target="_blank">MIT License</a>
 380
 381                                                 <i class="fa fa-circle"></i> <a href="http://getbootstrap.com/getting-started/" target="_blank">Bootstrap</a>,
 382                                                 <i class="fa fa-copyright"></i> Copyright 2015, Twitter, <a href="http://getbootstrap.com/getting-started/#license-faqs" target="_blank">MIT License</a>
 383
 384                                                 <i class="fa fa-circle"></i> <a href="http://www.bootstraptoggle.com/" target="_blank">Bootstrap Toggle</a>,
 385                                                 <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>
 386
 387                                                 <i class="fa fa-circle"></i> <a href="https://jamesflorentino.github.io/nanoScrollerJS/" target="_blank">NanoScroller</a>,
 388                                                 <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>
 389
 390                                                 <i class="fa fa-circle"></i> <a href="https://github.com/marcj/css-element-queries" target="_blank">CSS Element Queries</a>,
 391                                                 <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>
 392
 393                                                 <i class="fa fa-circle"></i> <a href="https://fortawesome.github.io/Font-Awesome/" target="_blank">FontAwesome</a>,
 394                                                 <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>
 395
 396                                                 <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.
 397
 398                                                 <i class="fa fa-circle"></i> <a href="http://morrisjs.github.io/morris.js/" target="_blank">morris.js</a>,
 399                                                 <i class="fa fa-copyright"></i> Copyright 2013, Olly Smith, <a href="http://morrisjs.github.io/morris.js/" target="_blank">Simplified BSD License</a>
 400
 401                                                 <i class="fa fa-circle"></i> <a href="http://raphaeljs.com/" target="_blank">Raphaël</a>,
 402                                                 <i class="fa fa-copyright"></i> Copyright 2008, Dmitry Baranovskiy, <a href="http://raphaeljs.com/license.html" target="_blank">MIT License</a>
 403
 404                                                 <i class="fa fa-circle"></i> <a href="http://C3js.org/" target="_blank">C3</a>,
 405                                                 <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>
 406
 407                                                 <i class="fa fa-circle"></i> <a href="http://D3js.org/" target="_blank">D3</a>,
 408                                                 <i class="fa fa-copyright"></i> Copyright 2015, Mike Bostock, <a href="http://opensource.org/licenses/BSD-3-Clause" target="_blank">BSD License</a>
 409
 410                                         </small>
 411                                 </div>
 412                         </div>
 413                 </div>
 414         </div>
 415
 416         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 417                 <div class="modal-dialog modal-lg" role="document">
 418                         <div class="modal-content">
 419                                 <div class="modal-header">
 420                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 421                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
 422                                 </div>
 423                                 <div class="modal-body">
 424                                                 <div class="p">
 425                                                 <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 realtime timeseries data, from CPU usage, disk activity, SQL queries, API calls, web site visitors, etc.
 426                                                 </div>
 427                                                 <div class="p">
 428                                                 <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.
 429                                                 </div>
 430                                                 <div class="p">
 431                                                 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.
 432                                                 </div>
 433                                                 <div class="p">
 434                                                 <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>%),
 435                                                 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).
 436                                                 </div>
 437                                                 <div class="p">
 438                                                 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>!).
 439                                                 </div>
 440                                                 <div class="p">
 441                                                 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
 442                                                 </div>
 443                                 </div>
 444                                 <div class="modal-footer">
 445                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 446                                 </div>
 447                         </div>
 448                 </div>
 449         </div>
 450
 451         <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
 452                 <div class="modal-dialog modal-lg" role="document">
 453                         <div class="modal-content">
 454                                 <div class="modal-header">
 455                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 456                                         <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
 457                                 </div>
 458                                 <div class="modal-body">
 459
 460                                         <h4>Dygraphs (line, area and stacked area charts)</h4>
 461
 462                                         <!-- Nav tabs -->
 463                                         <ul class="nav nav-tabs" role="tablist">
 464                                                 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
 465                                                 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
 466                                         </ul>
 467
 468                                         <!-- Tab panes -->
 469                                         <div class="tab-content">
 470                                                 <div role="tabpanel" class="tab-pane active" id="help_mouse">
 471                                                         <div class="p">
 472                                                                 <h4>Mouse Over / Hover</h4>
 473                                                                 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).
 474                                                                 <br/>
 475                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 476                                                         </div>
 477                                                         <hr/>
 478                                                         <div class="p">
 479                                                                 <h4>Trag Chart Contents</h4>
 480                                                                 Trag the contents of a chart to pan it horizontally.
 481                                                                 <br/>
 482                                                                 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).
 483                                                                 <br/>
 484                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
 485                                                         </div>
 486                                                         <hr/>
 487                                                         <div class="p">
 488                                                                 <h4>Double Click</h4>
 489                                                                 Double Click a chart to reset all the charts to their default auto-refreshing state.
 490                                                         </div>
 491                                                         <hr/>
 492                                                         <div class="p">
 493                                                                 <h4>SHIFT + Trag</h4>
 494                                                                 While pressing the shift key, select with the mouse and area of a chart, to zoom in. The other charts will follow too. Zooming is performed in two phases:
 495                                                                 <ul>
 496                                                                         <li>The already loaded chart contents are zoomed (low resolution)</li>
 497                                                                         <li>New data are transfered from the netdata server, to refresh the chart with possibly more detail.</li>
 498                                                                 </ul>
 499                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 500                                                         </div>
 501                                                         <hr/>
 502                                                         <div class="p">
 503                                                                 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
 504                                                                 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.
 505                                                                 <br/>
 506                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 507                                                         </div>
 508                                                         <hr/>
 509                                                         <div class="p">
 510                                                                 <h4>Legend Operations</h4>
 511                                                                 Click on the label or value of a dimension, will select / unselect this dimension.
 512                                                                 <br/>
 513                                                                 You can press any of the shift or control keys and the click on legend labels or values, to select / unselect multiple dimensions.
 514                                                         </div>
 515                                                 </div>
 516                                                 <div role="tabpanel" class="tab-pane" id="help_touch">
 517                                                         <div class="p">
 518                                                                 <h4>Single Tap</h4>
 519                                                                 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).
 520                                                                 <br/>
 521                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 522                                                         </div>
 523                                                         <hr/>
 524                                                         <div class="p">
 525                                                                 <h4>Trag Chart Contents</h4>
 526                                                                 Touch and Trag the contents of a chart to pan it horizontally.
 527                                                                 <br/>
 528                                                                 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).
 529                                                                 <br/>
 530                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
 531                                                         </div>
 532                                                         <hr/>
 533                                                         <div class="p">
 534                                                                 <h4>Double Tap</h4>
 535                                                                 Double tap a chart to reset all the charts to their default auto-refreshing state.
 536                                                         </div>
 537                                                         <hr/>
 538                                                         <div class="p">
 539                                                                 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
 540                                                                 With two fingers, zoom in or out.
 541                                                                 <br/>
 542                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 543                                                         </div>
 544                                                         <hr/>
 545                                                         <div class="p">
 546                                                                 <h4>Legend Operations</h4>
 547                                                                 Tap on the label or value of a dimension, will select / unselect this dimension.
 548                                                         </div>
 549                                                 </div>
 550                                         </div>
 551                                 </div>
 552                                 <div class="modal-footer">
 553                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 554                                 </div>
 555                         </div>
 556                 </div>
 557         </div>
 558
 559         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 560                 <div class="modal-dialog modal-lg" role="document">
 561                         <div class="modal-content">
 562                                 <div class="modal-header">
 563                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 564                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 565                                 </div>
 566                                 <div class="modal-body">
 567                                         <center>
 568                                                 <small style="color: #BBBBBB;">Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 569                                                 <br/>
 570                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="NETDATA.resetOptions(); return false;">here</a>.</small>
 571                                         </center>
 572                                         <div style="padding: 10px;"></div>
 573
 574                                         <!-- Nav tabs -->
 575                                         <ul class="nav nav-tabs" role="tablist">
 576                                                 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
 577                                                 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
 578                                                 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
 579                                         </ul>
 580
 581                                         <!-- Tab panes -->
 582                                         <div class="tab-content">
 583                                                 <div role="tabpanel" class="tab-pane active" id="settings_performance">
 584                                                         <form id="optionsForm" method="get" class="form-horizontal">
 585                                                                 <div class="form-group">
 586                                                                         <table>
 587                                                                         <tr class="option-row">
 588                                                                                 <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>
 589                                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 590                                                                                         <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>
 591                                                                                 </td>
 592                                                                                 </tr>
 593                                                                         <tr class="option-row">
 594                                                                                 <td class="option-control">
 595                                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 596                                                                                 </td>
 597                                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 598                                                                                         <small>When set to <b>Non Zero</b>, dimensions that have all their values (within the current view) set to zero will not be transfered from the netdata server (except if all dimensions of the chart are zero, in which case this setting does nothing - all dimensions are transfered 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 transfered 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>
 599                                                                                 </td>
 600                                                                                 </tr>
 601                                                                         <tr class="option-row">
 602                                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 603                                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 604                                                                                         <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>
 605                                                                                 </td>
 606                                                                                 </tr>
 607                                                                         </table>
 608                                                                 </div>
 609                                                         </form>
 610                                                 </div>
 611                                                 <div role="tabpanel" class="tab-pane" id="settings_sync">
 612                                                         <form id="optionsForm" method="get" class="form-horizontal">
 613                                                                 <div class="form-group">
 614                                                                         <table>
 615                                                                         <tr class="option-row">
 616                                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequencial" data-width="110px"></td>
 617                                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 618                                                                                         <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>sequencial</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 sequencial if you work on an older/slower computer.</small>
 619                                                                                 </td>
 620                                                                                 </tr>
 621                                                                         <tr class="option-row" id="concurrent_refreshes_row">
 622                                                                                 <td class="option-control"></td>
 623                                                                                 <td class="option-info">
 624                                                                                         <table>
 625                                                                                         <tr class="option-row">
 626                                                                                         <td class="option-control">
 627                                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 628                                                                                         </td>
 629                                                                                         <td class="option-info">
 630                                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 631                                                                                         <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>
 632                                                                                         </td>
 633                                                                                         </tr>
 634                                                                                         </table>
 635                                                                                 </td>
 636                                                                                 </tr>
 637                                                                         <tr class="option-row">
 638                                                                                 <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>
 639                                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 640                                                                                         <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>
 641                                                                                 </td>
 642                                                                                 </tr>
 643                                                                         <tr class="option-row">
 644                                                                                 <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>
 645                                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 646                                                                                         <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>
 647                                                                                 </td>
 648                                                                                 </tr>
 649                                                                         </table>
 650                                                                 </div>
 651                                                         </form>
 652                                                 </div>
 653                                                 <div role="tabpanel" class="tab-pane" id="settings_visual">
 654                                                         <form id="optionsForm" method="get" class="form-horizontal">
 655                                                                 <div class="form-group">
 656                                                                         <table>
 657                                                                         <tr class="option-row">
 658                                                                                 <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>
 659                                                                                 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
 660                                                                                         <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>
 661                                                                                 </td>
 662                                                                                 </tr>
 663                                                                         <tr class="option-row">
 664                                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 665                                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 666                                                                                         <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.</small>
 667                                                                                 </td>
 668                                                                                 </tr>
 669                                                                         </table>
 670                                                                 </div>
 671                                                         </form>
 672                                                 </div>
 673                                         </div>
 674                                 </div>
 675                                 <div class="modal-footer">
 676                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 677                                 </div>
 678                         </div>
 679                 </div>
 680         </div>
 681
 682 </body>
 683 </html>
 684 <script>
 685
 686 var demo_hostname = 'netdata.firehol.org';
 687 // var demo_hostname = 'box';
 688
 689 if(document.location.hostname === demo_hostname) {
 690         document.getElementById('masthead').style.display = 'block';
 691 }
 692
 693 var options = {
 694         sparklines_registry: {},
 695         interfaces_registry: {},
 696         data: null,
 697         hostname: 'netdata_server', // will be overwritten by the netdata server
 698         categories: new Array(),
 699         categories_idx: {},
 700         families: new Array(),
 701         families_idx: {},
 702
 703         chartsPerRow: 0,
 704         chartsMinWidth: 1450,
 705         chartsHeight: 180,
 706         sparklinesHeight: 60
 707 };
 708
 709 // generate a sparkline
 710 // used in the documentation
 711 function sparkline(chart, dimension, units) {
 712         var key = chart + '.' + dimension;
 713
 714         if(typeof units === 'undefined')
 715                 units = '';
 716
 717         if(typeof options.sparklines_registry[key] === 'undefined')
 718                 options.sparklines_registry[key] = { count: 1 };
 719         else
 720                 options.sparklines_registry[key].count++;
 721
 722         key = key + '.' + options.sparklines_registry[key].count;
 723
 724         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 + ')';
 725
 726         return h;
 727 }
 728
 729 function chartsPerRow(total) {
 730         if(options.chartsPerRow === 0) {
 731                 width = Math.floor(total / options.chartsMinWidth);
 732                 if(width === 0) width = 1;
 733                 return width;
 734         }
 735         else return options.chartsPerRow;
 736 }
 737
 738 function prioritySort(a, b) {
 739         if(a.priority < b.priority) return -1;
 740         if(a.priority > b.priority) return 1;
 741         if(a.name < b.name) return -1;
 742         return 1;
 743 }
 744
 745 function sortObjectByPriority(object) {
 746         var idx = {};
 747         var sorted = new Array();
 748
 749         for(var i in object) {
 750                 if(typeof idx[i] === 'undefined') {
 751                         idx[i] = object[i];
 752                         sorted.push(i);
 753                 }
 754         }
 755
 756         sorted.sort(function(a, b) {
 757                 if(idx[a].priority < idx[b].priority) return -1;
 758                 if(idx[a].priority > idx[b].priority) return 1;
 759                 if(a < b) return -1;
 760                 return 1;
 761         });
 762
 763         return sorted;
 764 }
 765
 766 // ----------------------------------------------------------------------------
 767
 768 function gaugeChart(title, width, dimensions, colors) {
 769         if(typeof colors === 'undefined')
 770                 colors = '';
 771
 772         if(typeof dimensions === 'undefined')
 773                 dimensions = '';
 774
 775         return '<div data-netdata="CHART_UNIQUE_ID"'
 776                                                         + ' data-dimensions="' + dimensions + '"'
 777                                                         + ' data-chart-library="gauge"'
 778                                                         + ' data-gauge-adjust="width"'
 779                                                         + ' data-title="' + title + '"'
 780                                                         + ' data-width="' + width + '"'
 781                                                         + ' data-before="0"'
 782                                                         + ' data-after="-CHART_DURATION"'
 783                                                         + ' data-points="CHART_DURATION"'
 784                                                         + ' data-colors="' + colors + '"'
 785                                                         + ' role="application"></div>';
 786 }
 787
 788 // ----------------------------------------------------------------------------
 789
 790 var menuData = {
 791         'system': {
 792                 title: 'System Overview',
 793                 info: 'Overview of the key system metrics.'
 794         },
 795
 796         'ap': {
 797                 title: 'Access Points',
 798                 info: undefined
 799         },
 800
 801         'tc': {
 802                 title: 'Quality of Service',
 803                 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).'
 804         },
 805
 806         'net': {
 807                 title: 'Network Interfaces',
 808                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
 809         },
 810
 811         'ipv4': {
 812                 title: 'IPv4 Networking',
 813                 info: undefined
 814         },
 815
 816         'ipvs': {
 817                 title: 'IP Virtual Server',
 818                 info: undefined
 819         },
 820
 821         'netfilter': {
 822                 title: 'Firewall (netfilter)',
 823                 info: undefined
 824         },
 825
 826         'cpu': {
 827                 title: 'CPUs',
 828                 info: undefined
 829         },
 830
 831         'mem': {
 832                 title: 'Memory',
 833                 info: undefined
 834         },
 835
 836         'disk': {
 837                 title: 'Disks',
 838                 info: undefined
 839         },
 840
 841         'sensors': {
 842                 title: 'Sensors',
 843                 info: undefined
 844         },
 845
 846         'nfsd': {
 847                 title: 'File Server (nfsd)',
 848                 info: undefined
 849         },
 850
 851         'apps': {
 852                 title: 'Applications',
 853                 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 internaly 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 childs continiously, 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 childs 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 unrealisting utilization for each process group. So, we decided to ignore these values and present only the utilization of <b>the currently running processes</b>.',
 854                 height: 1.5
 855         },
 856
 857         'netdata': {
 858                 title: 'Netdata Monitoring',
 859                 info: undefined
 860         },
 861
 862         'example': {
 863                 title: 'Example Charts',
 864                 info: undefined
 865         },
 866 };
 867
 868 var submenuData = {
 869         'mem.ksm': {
 870                 title: 'Memory Deduper',
 871                 info: 'Kernel Same-page Merging (KSM) is the kernel memory de-duper.'
 872         }
 873 };
 874
 875 var chartData = {
 876         'system.cpu': {
 877                 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.'
 878         },
 879
 880         'system.load': {
 881                 info: 'Current system load read from <code>/proc/loadavg</code>.',
 882                 height: 0.7
 883         },
 884
 885         'system.io': {
 886                 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.'
 887         },
 888
 889         'system.swapio': {
 890                 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).'
 891         },
 892
 893         'system.pgfaults': {
 894                 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.'
 895         },
 896
 897         'system.entropy': {
 898                 colors: '#CC22AA',
 899                 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.'
 900         },
 901
 902         'system.forks': {
 903                 colors: '#5555DD',
 904                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
 905         },
 906
 907         'system.intr': {
 908                 colors: '#DD5555',
 909                 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.'
 910         },
 911
 912         'system.interrupts': {
 913                 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.'
 914         },
 915
 916         'system.softirqs': {
 917                 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.'
 918         },
 919
 920         'system.processes': {
 921                 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.'
 922         },
 923
 924         'system.ctxt': {
 925                 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.'
 926         },
 927
 928         'system.idlejitter': {
 929                 colors: '#5555AA',
 930                 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 different between the requested and the actual duration of the sleep, is the <b>idle jitter</b>. This number is useful in realtime environments, where CPU jitter can affect the quality of the service (like VoIP media gateways).'
 931         },
 932
 933         'system.ipv4': {
 934                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>. This includes <code>lo</code> device traffic.'
 935         },
 936
 937         'system.ram': {
 938                 info: 'System memory, read from <code>/proc/meminfo</code>.'
 939         },
 940
 941         'system.swap': {
 942                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
 943         },
 944
 945         'mem.committed': {
 946                 colors: NETDATA.colors[3]
 947         },
 948
 949         'apps.cpu': {
 950                 height: 2.0
 951         },
 952
 953         'apps.preads': {
 954                 height: 2.0
 955         },
 956
 957         'apps.pwrites': {
 958                 height: 2.0
 959         },
 960
 961         'tc.qos': {
 962                 heads: [
 963                         function(id) {
 964                                 if(id.match(/.*-ifb$/))
 965                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
 966                                 else
 967                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
 968                         }
 969                 ]
 970         },
 971
 972         'net.net': {
 973                 heads: [
 974                         gaugeChart('Received', '12%', 'received'),
 975                         gaugeChart('Sent', '12%', 'sent')
 976                 ]
 977         },
 978
 979         'disk.util': {
 980                 colors: '#FF5588',
 981                 heads: [
 982                         gaugeChart('Utilization', '12%', '', '#FF5588')
 983                 ]
 984         },
 985
 986         'disk.backlog': {
 987                 colors: '#CCCC00'
 988         },
 989
 990         'disk.io': {
 991                 heads: [
 992                         gaugeChart('Read', '12%', 'reads'),
 993                         gaugeChart('Write', '12%', 'writes')
 994                 ]
 995         },
 996
 997         'netfilter.sockets': {
 998                 colors: '#88AA00',
 999                 heads: [
1000                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1001                 ]
1002         },
1003
1004         'netfilter.new': {
1005                 heads: [
1006                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1007                 ]
1008         },
1009
1010         'disk.iotime': {
1011                 height: 0.5
1012         },
1013         'disk.mops': {
1014                 height: 0.5
1015         },
1016         'disk.svctm': {
1017                 height: 0.5
1018         },
1019         'disk.avgsz': {
1020                 height: 0.5
1021         },
1022         'disk.await': {
1023                 height: 0.5
1024         },
1025
1026         'apache.connections': {
1027                 colors: NETDATA.colors[4],
1028                 mainheads: [
1029                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1030                 ]
1031         },
1032
1033         'apache.requests': {
1034                 colors: NETDATA.colors[0],
1035                 mainheads: [
1036                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1037                 ]
1038         },
1039
1040         'apache.net': {
1041                 colors: NETDATA.colors[3],
1042                 mainheads: [
1043                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1044                 ]
1045         },
1046
1047         'apache.workers': {
1048                 mainheads: [
1049                         function(id) {
1050                                 return  '<div data-netdata="' + id + '"'
1051                                         + ' data-dimensions="busy"'
1052                                         + ' data-append-options="percentage"'
1053                                         + ' data-gauge-max-value="100"'
1054                                         + ' data-chart-library="gauge"'
1055                                         + ' data-title="Workers Utilization"'
1056                                         + ' data-units="percentage %"'
1057                                         + ' data-gauge-adjust="width"'
1058                                         + ' data-width="12%"'
1059                                         + ' data-before="0"'
1060                                         + ' data-after="-CHART_DURATION"'
1061                                         + ' data-points="CHART_DURATION"'
1062                                         + ' role="application"></div>';
1063                         }
1064                 ]
1065         },
1066
1067         'apache.bytesperreq': {
1068                 colors: NETDATA.colors[3],
1069                 height: 0.5
1070         },
1071
1072         'apache.reqpersec': {
1073                 colors: NETDATA.colors[4],
1074                 height: 0.5
1075         },
1076
1077         'apache.bytespersec': {
1078                 colors: NETDATA.colors[6],
1079                 height: 0.5
1080         },
1081
1082         'nginx.connections': {
1083                 colors: NETDATA.colors[4],
1084                 mainheads: [
1085                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1086                 ]
1087         },
1088
1089         'nginx.requests': {
1090                 colors: NETDATA.colors[0],
1091                 mainheads: [
1092                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1093                 ]
1094         }
1095 };
1096
1097 function anyAttribute(obj, attr, key, def) {
1098         if(typeof obj[key] !== 'undefined') {
1099                 if(typeof obj[key][attr] !== 'undefined')
1100                         return obj[key][attr];
1101         }
1102         return def;
1103 }
1104
1105 function menuTitle(menu) {
1106         return anyAttribute(menuData, 'title', menu, menu);
1107 }
1108
1109 function menuInfo(menu) {
1110         return anyAttribute(menuData, 'title', menu, null);
1111 }
1112
1113 function menuHeight(menu, relative) {
1114         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1115 }
1116
1117 function submenuTitle(menu, submenu) {
1118         var key = menu + '.' + submenu;
1119         return anyAttribute(submenuData, 'title', key, submenu);
1120 }
1121
1122 function submenuInfo(menu, submenu) {
1123         var key = menu + '.' + submenu;
1124         return anyAttribute(submenuData, 'info', key, null);
1125 }
1126
1127 function submenuHeight(menu, submenu, relative) {
1128         var key = menu + '.' + submenu;
1129         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1130 }
1131
1132
1133 function chartInfo(id) {
1134         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1135                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1136         else
1137                 return '';
1138 }
1139
1140 function chartHeight(id, def) {
1141         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1142                 return def * chartData[id].height;
1143         else
1144                 return def;
1145 }
1146
1147
1148 // ----------------------------------------------------------------------------
1149
1150 // enrich the data structure returned by netdata
1151 // to reflect our menu system and content
1152 function enrichChartData(chart) {
1153         // net_* and disk_* have special grouping
1154         if(chart.type.match(/^net_/))
1155                 chart.menu = 'net';
1156         else if(chart.type.match(/^ap_/))
1157                 chart.menu = 'ap';
1158         else if(chart.type.match(/^disk_/))
1159                 chart.menu = 'disk';
1160         else
1161                 chart.menu = chart.type;
1162
1163         // increase the priority of IFB devices
1164         if(chart.type === 'tc' && chart.id.match(/.*-ifb$/))
1165                 chart.priority--;
1166
1167         chart.submenu = chart.family;
1168 }
1169
1170 // ----------------------------------------------------------------------------
1171
1172 function name2id(s) {
1173         return s
1174                 .replace(' ', '_')
1175                 .replace('(', '_')
1176                 .replace(')', '_')
1177                 .replace('.', '_')
1178                 .replace('/', '_');
1179 }
1180
1181 function headMain(charts, duration) {
1182         var head = '';
1183
1184         if(typeof charts['system.swap'] !== 'undefined')
1185                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1186                 + ' data-dimensions="free"'
1187                 + ' data-append-options="percentage"'
1188                 + ' data-chart-library="easypiechart"'
1189                 + ' data-title="Free Swap"'
1190                 + ' data-units="%"'
1191                 + ' data-easypiechart-max-value="100"'
1192                 + ' data-width="8%"'
1193                 + ' data-before="0"'
1194                 + ' data-after="-' + duration.toString() + '"'
1195                 + ' data-points="' + duration.toString() + '"'
1196                 + ' data-colors="#DD4400"'
1197                 + ' role="application"></div>';
1198
1199         if(typeof charts['system.io'] !== 'undefined') {
1200                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1201                 + ' data-dimensions="in"'
1202                 + ' data-chart-library="easypiechart"'
1203                 + ' data-title="Disk Read"'
1204                 + ' data-units="KB / s"'
1205                 + ' data-width="10%"'
1206                 + ' data-before="0"'
1207                 + ' data-after="-' + duration.toString() + '"'
1208                 + ' data-points="' + duration.toString() + '"'
1209                 + ' role="application"></div>';
1210
1211                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1212                 + ' data-dimensions="out"'
1213                 + ' data-chart-library="easypiechart"'
1214                 + ' data-title="Disk Write"'
1215                 + ' data-units="KB / s"'
1216                 + ' data-width="10%"'
1217                 + ' data-before="0"'
1218                 + ' data-after="-' + duration.toString() + '"'
1219                 + ' data-points="' + duration.toString() + '"'
1220                 + ' role="application"></div>';
1221         }
1222
1223         if(typeof charts['system.cpu'] !== 'undefined')
1224                 head += '<div data-netdata="system.cpu"'
1225                 + ' data-chart-library="gauge"'
1226                 + ' data-title="CPU"'
1227                 + ' data-units="%"'
1228                 + ' data-gauge-max-value="100"'
1229                 + ' data-width="18%"'
1230                 + ' data-after="-' + duration.toString() + '"'
1231                 + ' data-points="' + duration.toString() + '"'
1232                 + ' data-colors="' + NETDATA.colors[12] + '"'
1233                 + ' role="application"></div>';
1234
1235         if(typeof charts['system.ipv4'] !== 'undefined') {
1236                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1237                 + ' data-dimensions="received"'
1238                 + ' data-chart-library="easypiechart"'
1239                 + ' data-title="IPv4 Inbound"'
1240                 + ' data-units="kbps"'
1241                 + ' data-width="10%"'
1242                 + ' data-before="0"'
1243                 + ' data-after="-' + duration.toString() + '"'
1244                 + ' data-points="' + duration.toString() + '"'
1245                 + ' role="application"></div>';
1246
1247                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1248                 + ' data-dimensions="sent"'
1249                 + ' data-chart-library="easypiechart"'
1250                 + ' data-title="IPv4 Outbound"'
1251                 + ' data-units="kbps"'
1252                 + ' data-width="10%"'
1253                 + ' data-before="0"'
1254                 + ' data-after="-' + duration.toString() + '"'
1255                 + ' data-points="' + duration.toString() + '"'
1256                 + ' role="application"></div>';
1257         }
1258
1259         if(typeof charts['system.ram'] !== 'undefined')
1260                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1261                 + ' data-dimensions="cached|free"'
1262                 + ' data-append-options="percentage"'
1263                 + ' data-chart-library="easypiechart"'
1264                 + ' data-title="Available RAM"'
1265                 + ' data-units="%"'
1266                 + ' data-easypiechart-max-value="100"'
1267                 + ' data-width="8%"'
1268                 + ' data-after="-' + duration.toString() + '"'
1269                 + ' data-points="' + duration.toString() + '"'
1270                 + ' data-colors="' + NETDATA.colors[7] + '"'
1271                 + ' role="application"></div>';
1272
1273         return head;
1274 }
1275
1276 function generateHeadCharts(type, chart, duration) {
1277         var head = '';
1278         var hcharts = anyAttribute(chartData, type, chart.context, []);
1279         if(hcharts.length > 0) {
1280                 var hi = 0, hlen = hcharts.length;
1281                 while(hi < hlen) {
1282                         if(typeof hcharts[hi] === 'function')
1283                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1284                         else
1285                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1286                         hi++;
1287                 }
1288         }
1289         return head;
1290 }
1291
1292 function renderPage(menus, data) {
1293         var div = document.getElementById('charts_div');
1294         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1295
1296         // find the proper duration for per-second updates
1297         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1298         var html = '';
1299         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
1300         var mainhead = headMain(data.charts, duration);
1301
1302         // sort the menus
1303         var main = sortObjectByPriority(menus);
1304         var i = 0, len = main.length;
1305         while(i < len) {
1306                 var menu = main[i++];
1307
1308                 // generate an entry at the main menu
1309
1310                 sidebar += '<li class=""><a href="#' + menu + '">' + menus[menu].title + '</a><ul class="nav">';
1311                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menu + '" role="heading">' + menus[menu].title + '</h1></div><div id="' + menu + '" role="document">';
1312
1313                 if(menus[menu].info !== null)
1314                         html += menus[menu].info;
1315
1316                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
1317
1318                 var shtml = '';
1319                 var mhead = '<div style="width: 100%; text-align: center;">' + mainhead;
1320                 mainhead = '';
1321
1322                 // sort the submenus of this menu
1323                 var sub = sortObjectByPriority(menus[menu].submenus);
1324                 var si = 0, slen = sub.length;
1325                 while(si < slen) {
1326                         var submenu = sub[si++];
1327
1328                         // generate an entry at the submenu
1329                         sidebar += '<li class><a href="#' + name2id(menu + '_' + submenu) + '">' + menus[menu].submenus[submenu].title + '</a></li>';
1330                         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>';
1331
1332                         if(menus[menu].submenus[submenu].info !== null)
1333                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
1334
1335                         var head = '<div style="width: 100%; text-align: center;">';
1336                         var chtml = '';
1337
1338                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
1339
1340                         // sort the charts in this submenu of this menu
1341                         menus[menu].submenus[submenu].charts.sort(prioritySort);
1342                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
1343                         while(ci < clen) {
1344                                 var chart = menus[menu].submenus[submenu].charts[ci++];
1345
1346                                 // generate the submenu heading charts
1347                                 mhead += generateHeadCharts('mainheads', chart, duration);
1348                                 head += generateHeadCharts('heads', chart, duration);
1349
1350                                 // generate the chart
1351                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
1352                                         + ' data-width="' + pcent_width.toString() + '%"'
1353                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
1354                                         + ' data-before="0"'
1355                                         + ' data-after="-' + duration.toString() + '"'
1356                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
1357                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
1358                                         + ' role="application"></div>';
1359
1360                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
1361                         }
1362
1363                         head += '</div>';
1364                         shtml += head + chtml + '</div>';
1365                 }
1366
1367                 mhead += '</div>';
1368                 sidebar += '</ul></li>';
1369                 html += mhead + shtml + '</div></div><hr role="separator"/>';
1370         }
1371
1372         sidebar += '</ul>';
1373         div.innerHTML = html;
1374         document.getElementById('sidebar').innerHTML = sidebar;
1375         finalizePage();
1376 }
1377
1378 function renderChartsAndMenu(data) {
1379         var menus = {};
1380         var charts = data.charts;
1381
1382         for(var c in charts) {
1383                 enrichChartData(charts[c]);
1384
1385                 // create the menu
1386                 if(typeof menus[charts[c].menu] === 'undefined') {
1387                         menus[charts[c].menu] = {
1388                                 priority: charts[c].priority,
1389                                 submenus: {},
1390                                 title: menuTitle(charts[c].menu),
1391                                 info: menuInfo(charts[c].menu),
1392                                 height: menuHeight(charts[c].menu, options.chartsHeight)
1393                         };
1394                 }
1395
1396                 if(charts[c].priority < menus[charts[c].menu].priority)
1397                         menus[charts[c].menu].priority = charts[c].priority;
1398
1399                 // create the submenu
1400                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
1401                         menus[charts[c].menu].submenus[charts[c].submenu] = {
1402                                 priority: charts[c].priority,
1403                                 charts: new Array(),
1404                                 title: submenuTitle(charts[c].menu, charts[c].submenu),
1405                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
1406                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
1407                         };
1408                 }
1409
1410                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
1411                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
1412
1413                 // index the chart in the menu/submenu
1414                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
1415         }
1416
1417         renderPage(menus, data);
1418 }
1419
1420 function downloadAllCharts(netdata_url) {
1421         if(typeof netdata_url === 'undefined' || netdata_url === null)
1422                 netdata_url = NETDATA.serverDefault;
1423
1424         NETDATA.pause(function() {
1425
1426                 // download all the charts the server knows
1427                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
1428
1429                         options.data = data;
1430                         options.hostname = data.hostname;
1431                         document.getElementById('hostname').innerHTML = options.hostname;
1432                         document.getElementById('hostname').href = NETDATA.serverDefault;
1433                         document.title = options.hostname + ' dashboard';
1434
1435                         renderChartsAndMenu(data);
1436
1437                         // prepare our DOM
1438 //                      prepareScreen(data);
1439
1440                         // due to affix issues, prepareScreen() will unpause
1441                         // netdata as needed
1442                 });
1443         });
1444 }
1445
1446 // ----------------------------------------------------------------------------
1447
1448 function finalizePage() {
1449         // resize all charts - without starting the background thread
1450         // this has to be done while NETDATA is paused
1451         // if we ommit this, the affix menu will be wrong, since all
1452         // the Dom elements are initially zero-sized
1453         NETDATA.parseDom();
1454
1455         // let it run (update the charts)
1456         NETDATA.unpause();
1457
1458         // check if we have to jump to a specific section
1459         var hash = location.hash.replace('#','');
1460         if(hash != '') {
1461                 // Clear the hash in the URL
1462                 // location.hash = '';   // delete front "//" if you want to change the address bar
1463                 var offset = $(location.hash).offset();
1464                 if(typeof offset !== 'undefined')
1465                         $('html, body').animate({ scrollTop: offset.top }, 0);
1466         }
1467
1468         /* activate bootstrap sidebar (affix) */
1469         $('#sidebar').affix({
1470                 offset: {
1471                         top: (document.location.hostname === demo_hostname)?150:0,
1472                         bottom: 0
1473                 }
1474         });
1475
1476         /* fix scrolling of very long affix lists
1477            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
1478          */
1479         $('#sidebar').on('affixed.bs.affix', function() {
1480                 $(this).removeAttr('style');
1481         });
1482
1483         /* activate bootstrap scrollspy (needed for sidebar) */
1484         $(document.body).scrollspy({
1485                 target: '#sidebar',
1486                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
1487         });
1488
1489         document.getElementById('footer').style.display = 'block';
1490
1491
1492         var update_options_modal = function() {
1493                 // console.log('update_options_modal');
1494
1495                 var sync_option = function(option) {
1496                         var self = $('#' + option);
1497
1498                         if(self.prop('checked') !== NETDATA.getOption(option)) {
1499                                 // console.log('switching ' + option.toString());
1500                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
1501                         }
1502                 }
1503
1504                 sync_option('eliminate_zero_dimensions');
1505                 sync_option('destroy_on_hide');
1506                 sync_option('parallel_refresher');
1507                 sync_option('concurrent_refreshes');
1508                 sync_option('sync_selection');
1509                 sync_option('sync_pan_and_zoom');
1510                 sync_option('stop_updates_when_focus_is_lost');
1511                 sync_option('smooth_plot');
1512                 sync_option('pan_and_zoom_data_padding');
1513
1514                 if(NETDATA.getOption('parallel_refresher') === false) {
1515                         $('#concurrent_refreshes_row').hide();
1516                 }
1517                 else {
1518                         $('#concurrent_refreshes_row').show();
1519                 }
1520         };
1521         NETDATA.setOption('setOptionCallback', update_options_modal);
1522
1523         // handle options changes
1524         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
1525         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
1526         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
1527         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
1528         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
1529         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
1530         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
1531         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
1532         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
1533
1534         if(document.location.hostname === demo_hostname)
1535                 setTimeout(function() {
1536                         $('#welcomeModal').modal();
1537                 }, 1000);
1538 }
1539
1540 downloadAllCharts();
1541
1542 </script>