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                                                 <i class="fa fa-circle"></i> <a href="https://github.com/broofa/node-int64" target="_blank">node-int64</a>,
 411                                                 <i class="fa fa-copyright"></i> Copyright 2014, Robert Kieffer, <a href="https://github.com/broofa/node-int64/blob/master/LICENSE" target="_blank">MIT License</a>
 412
 413                                         </small>
 414                                 </div>
 415                         </div>
 416                 </div>
 417         </div>
 418
 419         <div class="modal fade" id="welcomeModal" tabindex="-1" role="dialog" aria-labelledby="welcomeModalLabel">
 420                 <div class="modal-dialog modal-lg" role="document">
 421                         <div class="modal-content">
 422                                 <div class="modal-header">
 423                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 424                                         <h4 class="modal-title" id="welcomeModalLabel">Welcome!</h4>
 425                                 </div>
 426                                 <div class="modal-body">
 427                                                 <div class="p">
 428                                                 <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.
 429                                                 </div>
 430                                                 <div class="p">
 431                                                 <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.
 432                                                 </div>
 433                                                 <div class="p">
 434                                                 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.
 435                                                 </div>
 436                                                 <div class="p">
 437                                                 <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>%),
 438                                                 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).
 439                                                 </div>
 440                                                 <div class="p">
 441                                                 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>!).
 442                                                 </div>
 443                                                 <div class="p">
 444                                                 For more information please refer to the <b><a href="https://github.com/firehol/netdata/wiki" target="_blank">netdata wiki</a></b>.
 445                                                 </div>
 446                                 </div>
 447                                 <div class="modal-footer">
 448                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 449                                 </div>
 450                         </div>
 451                 </div>
 452         </div>
 453
 454         <div class="modal fade" id="helpModal" tabindex="-1" role="dialog" aria-labelledby="helpModalLabel">
 455                 <div class="modal-dialog modal-lg" role="document">
 456                         <div class="modal-content">
 457                                 <div class="modal-header">
 458                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 459                                         <h4 class="modal-title" id="helpModalLabel">Dashboard Help</h4>
 460                                 </div>
 461                                 <div class="modal-body">
 462
 463                                         <h4>Dygraphs (line, area and stacked area charts)</h4>
 464
 465                                         <!-- Nav tabs -->
 466                                         <ul class="nav nav-tabs" role="tablist">
 467                                                 <li role="presentation" class="active"><a href="#help_mouse" aria-controls="help_mouse" role="tab" data-toggle="tab">Mouse Interface</a></li>
 468                                                 <li role="presentation"><a href="#help_touch" aria-controls="help_touch" role="tab" data-toggle="tab">Touch Interface</a></li>
 469                                         </ul>
 470
 471                                         <!-- Tab panes -->
 472                                         <div class="tab-content">
 473                                                 <div role="tabpanel" class="tab-pane active" id="help_mouse">
 474                                                         <div class="p">
 475                                                                 <h4>Mouse Over / Hover</h4>
 476                                                                 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).
 477                                                                 <br/>
 478                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 479                                                         </div>
 480                                                         <hr/>
 481                                                         <div class="p">
 482                                                                 <h4>Drag Chart Contents</h4>
 483                                                                 Drag the contents of a chart to pan it horizontally.
 484                                                                 <br/>
 485                                                                 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).
 486                                                                 <br/>
 487                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double click</b> a panned chart.
 488                                                         </div>
 489                                                         <hr/>
 490                                                         <div class="p">
 491                                                                 <h4>Double Click</h4>
 492                                                                 Double Click a chart to reset all the charts to their default auto-refreshing state.
 493                                                         </div>
 494                                                         <hr/>
 495                                                         <div class="p">
 496                                                                 <h4>SHIFT + Drag</h4>
 497                                                                 While pressing the shift key, click on the contents of a chart and move the mouse to select an area, to zoom in. The other charts will follow too. Zooming is performed in two phases:
 498                                                                 <ul>
 499                                                                         <li>The already loaded chart contents are zoomed (low resolution)</li>
 500                                                                         <li>New data are transfered from the netdata server, to refresh the chart with possibly more detail.</li>
 501                                                                 </ul>
 502                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 503                                                         </div>
 504                                                         <hr/>
 505                                                         <div class="p">
 506                                                                 <h4>SHIFT + Mouse Wheel <small>(does not work on firefox and IE/Edge)</small></h4>
 507                                                                 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.
 508                                                                 <br/>
 509                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 510                                                         </div>
 511                                                         <hr/>
 512                                                         <div class="p">
 513                                                                 <h4>Legend Operations</h4>
 514                                                                 Click on the label or value of a dimension, will select / unselect this dimension.
 515                                                                 <br/>
 516                                                                 You can press any of the SHIFT or CONTROL keys and then click on legend labels or values, to select / unselect multiple dimensions.
 517                                                         </div>
 518                                                 </div>
 519                                                 <div role="tabpanel" class="tab-pane" id="help_touch">
 520                                                         <div class="p">
 521                                                                 <h4>Single Tap</h4>
 522                                                                 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).
 523                                                                 <br/>
 524                                                                 All the other visible charts will also show and highlight their values for the same timestamp.
 525                                                         </div>
 526                                                         <hr/>
 527                                                         <div class="p">
 528                                                                 <h4>Drag Chart Contents</h4>
 529                                                                 Touch and Drag the contents of a chart to pan it horizontally.
 530                                                                 <br/>
 531                                                                 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).
 532                                                                 <br/>
 533                                                                 Once a chart is panned, auto refreshing stops for all charts. To enable it again, <b>double tap</b> a panned chart.
 534                                                         </div>
 535                                                         <hr/>
 536                                                         <div class="p">
 537                                                                 <h4>Double Tap</h4>
 538                                                                 Double tap a chart to reset all the charts to their default auto-refreshing state.
 539                                                         </div>
 540                                                         <hr/>
 541                                                         <div class="p">
 542                                                                 <h4>Zoom <small>(does not work on firefox and IE/Edge)</small></h4>
 543                                                                 With two fingers, zoom in or out.
 544                                                                 <br/>
 545                                                                 Once a chart is zoomed, auto refreshing stops for all charts. To enable it again, <b>double click</b> a zoomed chart.
 546                                                         </div>
 547                                                         <hr/>
 548                                                         <div class="p">
 549                                                                 <h4>Legend Operations</h4>
 550                                                                 Tap on the label or value of a dimension, will select / unselect this dimension.
 551                                                         </div>
 552                                                 </div>
 553                                         </div>
 554                                 </div>
 555                                 <div class="modal-footer">
 556                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 557                                 </div>
 558                         </div>
 559                 </div>
 560         </div>
 561
 562         <div class="modal fade" id="optionsModal" tabindex="-1" role="dialog" aria-labelledby="optionsModalLabel">
 563                 <div class="modal-dialog modal-lg" role="document">
 564                         <div class="modal-content">
 565                                 <div class="modal-header">
 566                                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
 567                                         <h4 class="modal-title" id="optionsModalLabel">netdata dashboard options</h4>
 568                                 </div>
 569                                 <div class="modal-body">
 570                                         <center>
 571                                                 <small style="color: #BBBBBB;">Settings take effect immediately and are saved permanently to browser local storage (except the refresh on focus / always option).
 572                                                 <br/>
 573                                                 To reset all options (including charts sizes) to their defaults, click <a href="#" onclick="NETDATA.resetOptions(); return false;">here</a>.</small>
 574                                         </center>
 575                                         <div style="padding: 10px;"></div>
 576
 577                                         <!-- Nav tabs -->
 578                                         <ul class="nav nav-tabs" role="tablist">
 579                                                 <li role="presentation" class="active"><a href="#settings_performance" aria-controls="settings_performance" role="tab" data-toggle="tab">Performance</a></li>
 580                                                 <li role="presentation"><a href="#settings_sync" aria-controls="settings_sync" role="tab" data-toggle="tab">Synchronization</a></li>
 581                                                 <li role="presentation"><a href="#settings_visual" aria-controls="settings_visual" role="tab" data-toggle="tab">Visual</a></li>
 582                                         </ul>
 583
 584                                         <!-- Tab panes -->
 585                                         <div class="tab-content">
 586                                                 <div role="tabpanel" class="tab-pane active" id="settings_performance">
 587                                                         <form id="optionsForm" method="get" class="form-horizontal">
 588                                                                 <div class="form-group">
 589                                                                         <table>
 590                                                                         <tr class="option-row">
 591                                                                                 <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>
 592                                                                                 <td class="option-info"><strong>When to refresh the charts?</strong><br/>
 593                                                                                         <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>
 594                                                                                 </td>
 595                                                                                 </tr>
 596                                                                         <tr class="option-row">
 597                                                                                 <td class="option-control">
 598                                                                                 <input id="eliminate_zero_dimensions" type="checkbox" checked data-toggle="toggle" data-on="Non Zero" data-off="All" data-width="110px">
 599                                                                                 </td>
 600                                                                                 <td class="option-info"><strong>Which dimensions to show?</strong><br/>
 601                                                                                         <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>
 602                                                                                 </td>
 603                                                                                 </tr>
 604                                                                         <tr class="option-row">
 605                                                                                 <td class="option-control"><input id="destroy_on_hide" type="checkbox" data-toggle="toggle" data-on="Destroy" data-off="Hide" data-width="110px"></td>
 606                                                                                 <td class="option-info"><strong>How to handle hidden charts?</strong><br/>
 607                                                                                         <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>
 608                                                                                 </td>
 609                                                                                 </tr>
 610                                                                         </table>
 611                                                                 </div>
 612                                                         </form>
 613                                                 </div>
 614                                                 <div role="tabpanel" class="tab-pane" id="settings_sync">
 615                                                         <form id="optionsForm" method="get" class="form-horizontal">
 616                                                                 <div class="form-group">
 617                                                                         <table>
 618                                                                         <tr class="option-row">
 619                                                                                 <td class="option-control"><input id="parallel_refresher" type="checkbox" checked data-toggle="toggle" data-on="Parallel" data-off="Sequencial" data-width="110px"></td>
 620                                                                                 <td class="option-info"><strong>Which chart refresh policy to use?</strong><br/>
 621                                                                                         <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>
 622                                                                                 </td>
 623                                                                                 </tr>
 624                                                                         <tr class="option-row" id="concurrent_refreshes_row">
 625                                                                                 <td class="option-control"></td>
 626                                                                                 <td class="option-info">
 627                                                                                         <table>
 628                                                                                         <tr class="option-row">
 629                                                                                         <td class="option-control">
 630                                                                                         <input id="concurrent_refreshes" type="checkbox" checked data-toggle="toggle" data-on="Resync" data-off="Best Effort" data-width="110px">
 631                                                                                         </td>
 632                                                                                         <td class="option-info">
 633                                                                                         <strong>Shall we re-sync chart refreshes?</strong><br/>
 634                                                                                         <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>
 635                                                                                         </td>
 636                                                                                         </tr>
 637                                                                                         </table>
 638                                                                                 </td>
 639                                                                                 </tr>
 640                                                                         <tr class="option-row">
 641                                                                                 <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>
 642                                                                                 <td class="option-info"><strong>Sync hover selection on all charts?</strong><br/>
 643                                                                                         <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>
 644                                                                                 </td>
 645                                                                                 </tr>
 646                                                                         <tr class="option-row">
 647                                                                                 <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>
 648                                                                                 <td class="option-info"><strong>Sync pan and zoom on all charts?</strong><br/>
 649                                                                                         <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>
 650                                                                                 </td>
 651                                                                                 </tr>
 652                                                                         </table>
 653                                                                 </div>
 654                                                         </form>
 655                                                 </div>
 656                                                 <div role="tabpanel" class="tab-pane" id="settings_visual">
 657                                                         <form id="optionsForm" method="get" class="form-horizontal">
 658                                                                 <div class="form-group">
 659                                                                         <table>
 660                                                                         <tr class="option-row">
 661                                                                                 <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>
 662                                                                                 <td class="option-info"><strong>Enable data padding when panning and zooming?</strong><br/>
 663                                                                                         <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>
 664                                                                                 </td>
 665                                                                                 </tr>
 666                                                                         <tr class="option-row">
 667                                                                                 <td class="option-control"><input id="smooth_plot" type="checkbox" checked data-toggle="toggle"  data-on="Smooth" data-off="Rough" data-width="110px"></td>
 668                                                                                 <td class="option-info"><strong>Enable Bézier lines on charts?</strong><br/>
 669                                                                                         <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>
 670                                                                                 </td>
 671                                                                                 </tr>
 672                                                                         </table>
 673                                                                 </div>
 674                                                         </form>
 675                                                 </div>
 676                                         </div>
 677                                 </div>
 678                                 <div class="modal-footer">
 679                                         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
 680                                 </div>
 681                         </div>
 682                 </div>
 683         </div>
 684
 685 <script>
 686
 687 var demo_hostname = 'netdata.firehol.org';
 688 // var demo_hostname = 'box';
 689
 690 if(document.location.hostname === demo_hostname) {
 691         document.getElementById('masthead').style.display = 'block';
 692 }
 693
 694 var options = {
 695         sparklines_registry: {},
 696         submenu_names: {},
 697         data: null,
 698         hostname: 'netdata_server', // will be overwritten by the netdata server
 699         categories: new Array(),
 700         categories_idx: {},
 701         families: new Array(),
 702         families_idx: {},
 703
 704         chartsPerRow: 0,
 705         chartsMinWidth: 1450,
 706         chartsHeight: 180,
 707         sparklinesHeight: 60
 708 };
 709
 710 // generate a sparkline
 711 // used in the documentation
 712 function sparkline(chart, dimension, units) {
 713         var key = chart + '.' + dimension;
 714
 715         if(typeof units === 'undefined')
 716                 units = '';
 717
 718         if(typeof options.sparklines_registry[key] === 'undefined')
 719                 options.sparklines_registry[key] = { count: 1 };
 720         else
 721                 options.sparklines_registry[key].count++;
 722
 723         key = key + '.' + options.sparklines_registry[key].count;
 724
 725         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 + ')';
 726
 727         return h;
 728 }
 729
 730 function chartsPerRow(total) {
 731         if(options.chartsPerRow === 0) {
 732                 width = Math.floor(total / options.chartsMinWidth);
 733                 if(width === 0) width = 1;
 734                 return width;
 735         }
 736         else return options.chartsPerRow;
 737 }
 738
 739 function prioritySort(a, b) {
 740         if(a.priority < b.priority) return -1;
 741         if(a.priority > b.priority) return 1;
 742         if(a.name < b.name) return -1;
 743         return 1;
 744 }
 745
 746 function sortObjectByPriority(object) {
 747         var idx = {};
 748         var sorted = new Array();
 749
 750         for(var i in object) {
 751                 if(typeof idx[i] === 'undefined') {
 752                         idx[i] = object[i];
 753                         sorted.push(i);
 754                 }
 755         }
 756
 757         sorted.sort(function(a, b) {
 758                 if(idx[a].priority < idx[b].priority) return -1;
 759                 if(idx[a].priority > idx[b].priority) return 1;
 760                 if(a < b) return -1;
 761                 return 1;
 762         });
 763
 764         return sorted;
 765 }
 766
 767 // ----------------------------------------------------------------------------
 768
 769 function gaugeChart(title, width, dimensions, colors) {
 770         if(typeof colors === 'undefined')
 771                 colors = '';
 772
 773         if(typeof dimensions === 'undefined')
 774                 dimensions = '';
 775
 776         return '<div data-netdata="CHART_UNIQUE_ID"'
 777                                                         + ' data-dimensions="' + dimensions + '"'
 778                                                         + ' data-chart-library="gauge"'
 779                                                         + ' data-gauge-adjust="width"'
 780                                                         + ' data-title="' + title + '"'
 781                                                         + ' data-width="' + width + '"'
 782                                                         + ' data-before="0"'
 783                                                         + ' data-after="-CHART_DURATION"'
 784                                                         + ' data-points="CHART_DURATION"'
 785                                                         + ' data-colors="' + colors + '"'
 786                                                         + ' role="application"></div>';
 787 }
 788
 789 // ----------------------------------------------------------------------------
 790
 791 var menuData = {
 792         'system': {
 793                 title: 'System Overview',
 794                 info: 'Overview of the key system metrics.'
 795         },
 796
 797         'ap': {
 798                 title: 'Access Points',
 799                 info: undefined
 800         },
 801
 802         'tc': {
 803                 title: 'Quality of Service',
 804                 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).'
 805         },
 806
 807         'net': {
 808                 title: 'Network Interfaces',
 809                 info: 'Per network interface statistics collected from <code>/proc/net/dev</code>.'
 810         },
 811
 812         'ipv4': {
 813                 title: 'IPv4 Networking',
 814                 info: undefined
 815         },
 816
 817         'ipvs': {
 818                 title: 'IP Virtual Server',
 819                 info: undefined
 820         },
 821
 822         'netfilter': {
 823                 title: 'Firewall (netfilter)',
 824                 info: undefined
 825         },
 826
 827         'cpu': {
 828                 title: 'CPUs',
 829                 info: undefined
 830         },
 831
 832         'mem': {
 833                 title: 'Memory',
 834                 info: undefined
 835         },
 836
 837         'disk': {
 838                 title: 'Disks',
 839                 info: undefined
 840         },
 841
 842         'sensors': {
 843                 title: 'Sensors',
 844                 info: undefined
 845         },
 846
 847         'nfsd': {
 848                 title: 'File Server (nfsd)',
 849                 info: undefined
 850         },
 851
 852         'apps': {
 853                 title: 'Applications',
 854                 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>.',
 855                 height: 1.5
 856         },
 857
 858         'netdata': {
 859                 title: 'Netdata Monitoring',
 860                 info: undefined
 861         },
 862
 863         'example': {
 864                 title: 'Example Charts',
 865                 info: undefined
 866         },
 867 };
 868
 869 var submenuData = {
 870         'mem.ksm': {
 871                 title: 'Memory Deduper',
 872                 info: 'Kernel Same-page Merging (KSM) is the kernel memory de-duper.'
 873         }
 874 };
 875
 876 var chartData = {
 877         'system.cpu': {
 878                 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.'
 879         },
 880
 881         'system.load': {
 882                 info: 'Current system load read from <code>/proc/loadavg</code>.',
 883                 height: 0.7
 884         },
 885
 886         'system.io': {
 887                 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.'
 888         },
 889
 890         'system.swapio': {
 891                 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).'
 892         },
 893
 894         'system.pgfaults': {
 895                 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.'
 896         },
 897
 898         'system.entropy': {
 899                 colors: '#CC22AA',
 900                 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.'
 901         },
 902
 903         'system.forks': {
 904                 colors: '#5555DD',
 905                 info: 'The number of new processes created per second, read from <code>/proc/stat</code>.'
 906         },
 907
 908         'system.intr': {
 909                 colors: '#DD5555',
 910                 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.'
 911         },
 912
 913         'system.interrupts': {
 914                 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.'
 915         },
 916
 917         'system.softirqs': {
 918                 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.'
 919         },
 920
 921         'system.processes': {
 922                 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.'
 923         },
 924
 925         'system.active_processes': {
 926                 info: 'All system active processes, read from <code>/proc/loadavg</code>.'
 927         },
 928
 929         'system.ctxt': {
 930                 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.'
 931         },
 932
 933         'system.idlejitter': {
 934                 colors: '#5555AA',
 935                 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).'
 936         },
 937
 938         'system.ipv4': {
 939                 info: 'Total IPv4 Traffic, read from <code>/proc/net/netstat</code>. This includes <code>lo</code> device traffic.'
 940         },
 941
 942         'system.ram': {
 943                 info: 'System memory, read from <code>/proc/meminfo</code>.'
 944         },
 945
 946         'system.swap': {
 947                 info: 'System swap memory, read from <code>/proc/meminfo</code>.'
 948         },
 949
 950         'mem.ksm_savings': {
 951                 heads: [
 952                         gaugeChart('Saved', '12%', 'savings', '#0099CC')
 953                 ]
 954         },
 955
 956         'mem.ksm_ratios': {
 957                 heads: [
 958                         function(id) {
 959                                 return  '<div data-netdata="' + id + '"'
 960                                         + ' data-gauge-max-value="100"'
 961                                         + ' data-chart-library="gauge"'
 962                                         + ' data-title="Savings"'
 963                                         + ' data-units="percentage %"'
 964                                         + ' data-gauge-adjust="width"'
 965                                         + ' data-width="12%"'
 966                                         + ' data-before="0"'
 967                                         + ' data-after="-CHART_DURATION"'
 968                                         + ' data-points="CHART_DURATION"'
 969                                         + ' role="application"></div>';
 970                         }
 971                 ]
 972         },
 973
 974         'mem.committed': {
 975                 colors: NETDATA.colors[3]
 976         },
 977
 978         'apps.cpu': {
 979                 height: 2.0
 980         },
 981
 982         'apps.preads': {
 983                 height: 2.0
 984         },
 985
 986         'apps.pwrites': {
 987                 height: 2.0
 988         },
 989
 990         'tc.qos': {
 991                 heads: [
 992                         function(id) {
 993                                 if(id.match(/.*-ifb$/))
 994                                         return gaugeChart('Inbound', '12%', '', '#5555AA');
 995                                 else
 996                                         return gaugeChart('Outbound', '12%', '', '#AA9900');
 997                         }
 998                 ]
 999         },
1000
1001         'net.net': {
1002                 heads: [
1003                         gaugeChart('Received', '12%', 'received'),
1004                         gaugeChart('Sent', '12%', 'sent')
1005                 ]
1006         },
1007
1008         'disk.util': {
1009                 colors: '#FF5588',
1010                 heads: [
1011                         gaugeChart('Utilization', '12%', '', '#FF5588')
1012                 ]
1013         },
1014
1015         'disk.backlog': {
1016                 colors: '#0099CC'
1017         },
1018
1019         'disk.io': {
1020                 heads: [
1021                         gaugeChart('Read', '12%', 'reads'),
1022                         gaugeChart('Write', '12%', 'writes')
1023                 ]
1024         },
1025
1026         'netfilter.sockets': {
1027                 colors: '#88AA00',
1028                 heads: [
1029                         gaugeChart('Active Connections', '12%', '', '#88AA00')
1030                 ]
1031         },
1032
1033         'netfilter.new': {
1034                 heads: [
1035                         gaugeChart('New Connections', '12%', 'new', '#5555AA')
1036                 ]
1037         },
1038
1039         'disk.iotime': {
1040                 height: 0.5
1041         },
1042         'disk.mops': {
1043                 height: 0.5
1044         },
1045         'disk.svctm': {
1046                 height: 0.5
1047         },
1048         'disk.avgsz': {
1049                 height: 0.5
1050         },
1051         'disk.await': {
1052                 height: 0.5
1053         },
1054
1055         'apache.connections': {
1056                 colors: NETDATA.colors[4],
1057                 mainheads: [
1058                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1059                 ]
1060         },
1061
1062         'apache.requests': {
1063                 colors: NETDATA.colors[0],
1064                 mainheads: [
1065                         gaugeChart('Connections', '12%', '', NETDATA.colors[0])
1066                 ]
1067         },
1068
1069         'apache.net': {
1070                 colors: NETDATA.colors[3],
1071                 mainheads: [
1072                         gaugeChart('Bandwidth', '12%', '', NETDATA.colors[3])
1073                 ]
1074         },
1075
1076         'apache.workers': {
1077                 mainheads: [
1078                         function(id) {
1079                                 return  '<div data-netdata="' + id + '"'
1080                                         + ' data-dimensions="busy"'
1081                                         + ' data-append-options="percentage"'
1082                                         + ' data-gauge-max-value="100"'
1083                                         + ' data-chart-library="gauge"'
1084                                         + ' data-title="Workers Utilization"'
1085                                         + ' data-units="percentage %"'
1086                                         + ' data-gauge-adjust="width"'
1087                                         + ' data-width="12%"'
1088                                         + ' data-before="0"'
1089                                         + ' data-after="-CHART_DURATION"'
1090                                         + ' data-points="CHART_DURATION"'
1091                                         + ' role="application"></div>';
1092                         }
1093                 ]
1094         },
1095
1096         'apache.bytesperreq': {
1097                 colors: NETDATA.colors[3],
1098                 height: 0.5
1099         },
1100
1101         'apache.reqpersec': {
1102                 colors: NETDATA.colors[4],
1103                 height: 0.5
1104         },
1105
1106         'apache.bytespersec': {
1107                 colors: NETDATA.colors[6],
1108                 height: 0.5
1109         },
1110
1111         'nginx.connections': {
1112                 colors: NETDATA.colors[4],
1113                 mainheads: [
1114                         gaugeChart('Connections', '12%', '', NETDATA.colors[4])
1115                 ]
1116         },
1117
1118         'nginx.requests': {
1119                 colors: NETDATA.colors[0],
1120                 mainheads: [
1121                         gaugeChart('Requests', '12%', '', NETDATA.colors[0])
1122                 ]
1123         }
1124 };
1125
1126 function anyAttribute(obj, attr, key, def) {
1127         if(typeof obj[key] !== 'undefined') {
1128                 if(typeof obj[key][attr] !== 'undefined')
1129                         return obj[key][attr];
1130         }
1131         return def;
1132 }
1133
1134 function menuTitle(menu) {
1135         return anyAttribute(menuData, 'title', menu, menu);
1136 }
1137
1138 function menuInfo(menu) {
1139         return anyAttribute(menuData, 'title', menu, null);
1140 }
1141
1142 function menuHeight(menu, relative) {
1143         return anyAttribute(menuData, 'height', menu, 1.0) * relative;
1144 }
1145
1146 function submenuTitle(menu, submenu) {
1147         var key = menu + '.' + submenu;
1148         return anyAttribute(submenuData, 'title', key, submenu);
1149 }
1150
1151 function submenuInfo(menu, submenu) {
1152         var key = menu + '.' + submenu;
1153         return anyAttribute(submenuData, 'info', key, null);
1154 }
1155
1156 function submenuHeight(menu, submenu, relative) {
1157         var key = menu + '.' + submenu;
1158         return anyAttribute(submenuData, 'height', key, 1.0) * relative;
1159 }
1160
1161
1162 function chartInfo(id) {
1163         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].info !== 'undefined')
1164                 return '<div class="chart-message netdata-chart-alignment" role="document">' + chartData[id].info + '</div>';
1165         else
1166                 return '';
1167 }
1168
1169 function chartHeight(id, def) {
1170         if(typeof chartData[id] !== 'undefined' && typeof chartData[id].height !== 'undefined')
1171                 return def * chartData[id].height;
1172         else
1173                 return def;
1174 }
1175
1176
1177 // ----------------------------------------------------------------------------
1178
1179 // enrich the data structure returned by netdata
1180 // to reflect our menu system and content
1181 function enrichChartData(chart) {
1182         var tmp = chart.type.split('_')[0];
1183
1184         switch(tmp) {
1185                 case 'ap':
1186                 case 'net':
1187                 case 'disk':
1188                         chart.menu = tmp;
1189                         break;
1190
1191                 case 'tc':
1192                         chart.menu = tmp;
1193
1194                         // find the interface name from the name
1195                         if(typeof options.submenu_names[chart.family] === 'undefined' || options.submenu_names[chart.family] === chart.family)
1196                                 options.submenu_names[chart.family] = chart.name.split('.')[1].split('_')[0];
1197
1198                         // increase the priority of IFB devices
1199                         if(chart.id.match(/.*-ifb$/))
1200                                 chart.priority--;
1201
1202                         break;
1203
1204                 default:
1205                         chart.menu = chart.type;
1206                         break;
1207         }
1208
1209         chart.submenu = chart.family;
1210 }
1211
1212 // ----------------------------------------------------------------------------
1213
1214 function name2id(s) {
1215         return s
1216                 .replace(' ', '_')
1217                 .replace('(', '_')
1218                 .replace(')', '_')
1219                 .replace('.', '_')
1220                 .replace('/', '_');
1221 }
1222
1223 function headMain(charts, duration) {
1224         var head = '';
1225
1226         if(typeof charts['system.swap'] !== 'undefined')
1227                 head += '<div style="margin-right: 10px;" data-netdata="system.swap"'
1228                 + ' data-dimensions="free"'
1229                 + ' data-append-options="percentage"'
1230                 + ' data-chart-library="easypiechart"'
1231                 + ' data-title="Free Swap"'
1232                 + ' data-units="%"'
1233                 + ' data-easypiechart-max-value="100"'
1234                 + ' data-width="8%"'
1235                 + ' data-before="0"'
1236                 + ' data-after="-' + duration.toString() + '"'
1237                 + ' data-points="' + duration.toString() + '"'
1238                 + ' data-colors="#DD4400"'
1239                 + ' role="application"></div>';
1240
1241         if(typeof charts['system.io'] !== 'undefined') {
1242                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1243                 + ' data-dimensions="in"'
1244                 + ' data-chart-library="easypiechart"'
1245                 + ' data-title="Disk Read"'
1246                 + ' data-units="KB / s"'
1247                 + ' data-width="10%"'
1248                 + ' data-before="0"'
1249                 + ' data-after="-' + duration.toString() + '"'
1250                 + ' data-points="' + duration.toString() + '"'
1251                 + ' role="application"></div>';
1252
1253                 head += '<div style="margin-right: 10px;" data-netdata="system.io"'
1254                 + ' data-dimensions="out"'
1255                 + ' data-chart-library="easypiechart"'
1256                 + ' data-title="Disk Write"'
1257                 + ' data-units="KB / s"'
1258                 + ' data-width="10%"'
1259                 + ' data-before="0"'
1260                 + ' data-after="-' + duration.toString() + '"'
1261                 + ' data-points="' + duration.toString() + '"'
1262                 + ' role="application"></div>';
1263         }
1264
1265         if(typeof charts['system.cpu'] !== 'undefined')
1266                 head += '<div data-netdata="system.cpu"'
1267                 + ' data-chart-library="gauge"'
1268                 + ' data-title="CPU"'
1269                 + ' data-units="%"'
1270                 + ' data-gauge-max-value="100"'
1271                 + ' data-width="18%"'
1272                 + ' data-after="-' + duration.toString() + '"'
1273                 + ' data-points="' + duration.toString() + '"'
1274                 + ' data-colors="' + NETDATA.colors[12] + '"'
1275                 + ' role="application"></div>';
1276
1277         if(typeof charts['system.ipv4'] !== 'undefined') {
1278                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1279                 + ' data-dimensions="received"'
1280                 + ' data-chart-library="easypiechart"'
1281                 + ' data-title="IPv4 Inbound"'
1282                 + ' data-units="kbps"'
1283                 + ' data-width="10%"'
1284                 + ' data-before="0"'
1285                 + ' data-after="-' + duration.toString() + '"'
1286                 + ' data-points="' + duration.toString() + '"'
1287                 + ' role="application"></div>';
1288
1289                 head += '<div style="margin-right: 10px;" data-netdata="system.ipv4"'
1290                 + ' data-dimensions="sent"'
1291                 + ' data-chart-library="easypiechart"'
1292                 + ' data-title="IPv4 Outbound"'
1293                 + ' data-units="kbps"'
1294                 + ' data-width="10%"'
1295                 + ' data-before="0"'
1296                 + ' data-after="-' + duration.toString() + '"'
1297                 + ' data-points="' + duration.toString() + '"'
1298                 + ' role="application"></div>';
1299         }
1300
1301         if(typeof charts['system.ram'] !== 'undefined')
1302                 head += '<div style="margin-right: 10px;" data-netdata="system.ram"'
1303                 + ' data-dimensions="cached|free"'
1304                 + ' data-append-options="percentage"'
1305                 + ' data-chart-library="easypiechart"'
1306                 + ' data-title="Available RAM"'
1307                 + ' data-units="%"'
1308                 + ' data-easypiechart-max-value="100"'
1309                 + ' data-width="8%"'
1310                 + ' data-after="-' + duration.toString() + '"'
1311                 + ' data-points="' + duration.toString() + '"'
1312                 + ' data-colors="' + NETDATA.colors[7] + '"'
1313                 + ' role="application"></div>';
1314
1315         return head;
1316 }
1317
1318 function generateHeadCharts(type, chart, duration) {
1319         var head = '';
1320         var hcharts = anyAttribute(chartData, type, chart.context, []);
1321         if(hcharts.length > 0) {
1322                 var hi = 0, hlen = hcharts.length;
1323                 while(hi < hlen) {
1324                         if(typeof hcharts[hi] === 'function')
1325                                 head += hcharts[hi](chart.id).replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1326                         else
1327                                 head += hcharts[hi].replace('CHART_DURATION', duration.toString()).replace('CHART_UNIQUE_ID', chart.id);
1328                         hi++;
1329                 }
1330         }
1331         return head;
1332 }
1333
1334 function renderPage(menus, data) {
1335         var div = document.getElementById('charts_div');
1336         var pcent_width = Math.floor(100 / chartsPerRow($(div).width()));
1337
1338         // find the proper duration for per-second updates
1339         var duration = Math.round(($(div).width() * pcent_width / 100 * data.update_every / 3) / 60) * 60;
1340         var html = '';
1341         var sidebar = '<ul class="nav dashboard-sidenav" data-spy="affix" id="sidebar_ul">';
1342         var mainhead = headMain(data.charts, duration);
1343
1344         // sort the menus
1345         var main = sortObjectByPriority(menus);
1346         var i = 0, len = main.length;
1347         while(i < len) {
1348                 var menu = main[i++];
1349
1350                 // generate an entry at the main menu
1351
1352                 sidebar += '<li class=""><a href="#' + menu + '">' + menus[menu].title + '</a><ul class="nav">';
1353                 html += '<div role="section"><div role="sectionhead"><h1 id="' + menu + '" role="heading">' + menus[menu].title + '</h1></div><div id="' + menu + '" role="document">';
1354
1355                 if(menus[menu].info !== null)
1356                         html += menus[menu].info;
1357
1358                 // console.log(' >> ' + menu + ' (' + menus[menu].priority + '): ' + menus[menu].title);
1359
1360                 var shtml = '';
1361                 var mhead = '<div style="width: 100%; text-align: center;">' + mainhead;
1362                 mainhead = '';
1363
1364                 // sort the submenus of this menu
1365                 var sub = sortObjectByPriority(menus[menu].submenus);
1366                 var si = 0, slen = sub.length;
1367                 while(si < slen) {
1368                         var submenu = sub[si++];
1369
1370                         // generate an entry at the submenu
1371                         sidebar += '<li class><a href="#' + name2id(menu + '_' + submenu) + '">' + menus[menu].submenus[submenu].title + '</a></li>';
1372                         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>';
1373
1374                         if(menus[menu].submenus[submenu].info !== null)
1375                                 shtml += '<div class="chart-message netdata-chart-alignment" role="document">' + menus[menu].submenus[submenu].info + '</div>';
1376
1377                         var head = '<div style="width: 100%; text-align: center;">';
1378                         var chtml = '';
1379
1380                         // console.log('    \------- ' + submenu + ' (' + menus[menu].submenus[submenu].priority + '): ' + menus[menu].submenus[submenu].title);
1381
1382                         // sort the charts in this submenu of this menu
1383                         menus[menu].submenus[submenu].charts.sort(prioritySort);
1384                         var ci = 0, clen = menus[menu].submenus[submenu].charts.length;
1385                         while(ci < clen) {
1386                                 var chart = menus[menu].submenus[submenu].charts[ci++];
1387
1388                                 // generate the submenu heading charts
1389                                 mhead += generateHeadCharts('mainheads', chart, duration);
1390                                 head += generateHeadCharts('heads', chart, duration);
1391
1392                                 // generate the chart
1393                                 chtml += chartInfo(chart.context) + '<div data-netdata="' + chart.id + '"'
1394                                         + ' data-width="' + pcent_width.toString() + '%"'
1395                                         + ' data-height="' + chartHeight(chart.context, options.chartsHeight).toString() + 'px"'
1396                                         + ' data-before="0"'
1397                                         + ' data-after="-' + duration.toString() + '"'
1398                                         + ' data-id="' + name2id(options.hostname + '/' + chart.id) + '"'
1399                                         + ' data-colors="' + anyAttribute(chartData, 'colors', chart.context, '') + '"'
1400                                         + ' role="application"></div>';
1401
1402                                 // console.log('         \------- ' + chart.id + ' (' + chart.priority + '): ' + chart.context  + ' height: ' + menus[menu].submenus[submenu].height);
1403                         }
1404
1405                         head += '</div>';
1406                         shtml += head + chtml + '</div>';
1407                 }
1408
1409                 mhead += '</div>';
1410                 sidebar += '</ul></li>';
1411                 html += mhead + shtml + '</div></div><hr role="separator"/>';
1412         }
1413
1414         sidebar += '</ul>';
1415         div.innerHTML = html;
1416         document.getElementById('sidebar').innerHTML = sidebar;
1417         finalizePage();
1418 }
1419
1420 function renderChartsAndMenu(data) {
1421         var menus = {};
1422         var charts = data.charts;
1423
1424         for(var c in charts) {
1425                 enrichChartData(charts[c]);
1426
1427                 // create the menu
1428                 if(typeof menus[charts[c].menu] === 'undefined') {
1429                         menus[charts[c].menu] = {
1430                                 priority: charts[c].priority,
1431                                 submenus: {},
1432                                 title: menuTitle(charts[c].menu),
1433                                 info: menuInfo(charts[c].menu),
1434                                 height: menuHeight(charts[c].menu, options.chartsHeight)
1435                         };
1436                 }
1437
1438                 if(charts[c].priority < menus[charts[c].menu].priority)
1439                         menus[charts[c].menu].priority = charts[c].priority;
1440
1441                 // create the submenu
1442                 if(typeof menus[charts[c].menu].submenus[charts[c].submenu] === 'undefined') {
1443                         menus[charts[c].menu].submenus[charts[c].submenu] = {
1444                                 priority: charts[c].priority,
1445                                 charts: new Array(),
1446                                 title: null,
1447                                 info: submenuInfo(charts[c].menu, charts[c].submenu),
1448                                 height: submenuHeight(charts[c].menu, charts[c].submenu, menus[charts[c].menu].height)
1449                         };
1450                 }
1451
1452                 if(charts[c].priority < menus[charts[c].menu].submenus[charts[c].submenu].priority)
1453                         menus[charts[c].menu].submenus[charts[c].submenu].priority = charts[c].priority;
1454
1455                 // index the chart in the menu/submenu
1456                 menus[charts[c].menu].submenus[charts[c].submenu].charts.push(charts[c]);
1457         }
1458
1459         for(var m in menus) {
1460                 for(var s in menus[m].submenus) {
1461                         // set the family using a name
1462                         if(typeof options.submenu_names[s] !== 'undefined') {
1463                                 menus[m].submenus[s].title = s + ' (' + options.submenu_names[s] + ')';
1464                         }
1465                         else {
1466                                 menus[m].submenus[s].title = submenuTitle(m, s);
1467                         }
1468                 }
1469         }
1470
1471         renderPage(menus, data);
1472 }
1473
1474 function downloadAllCharts(netdata_url) {
1475         if(typeof netdata_url === 'undefined' || netdata_url === null)
1476                 netdata_url = NETDATA.serverDefault;
1477
1478         NETDATA.pause(function() {
1479
1480                 // download all the charts the server knows
1481                 NETDATA.chartRegistry.downloadAll(netdata_url, function(data) {
1482
1483                         options.data = data;
1484                         options.hostname = data.hostname;
1485                         document.getElementById('hostname').innerHTML = options.hostname;
1486                         document.getElementById('hostname').href = NETDATA.serverDefault;
1487                         document.title = options.hostname + ' dashboard';
1488
1489                         renderChartsAndMenu(data);
1490
1491                         // prepare our DOM
1492 //                      prepareScreen(data);
1493
1494                         // due to affix issues, prepareScreen() will unpause
1495                         // netdata as needed
1496                 });
1497         });
1498 }
1499
1500 // ----------------------------------------------------------------------------
1501
1502 function finalizePage() {
1503         // resize all charts - without starting the background thread
1504         // this has to be done while NETDATA is paused
1505         // if we ommit this, the affix menu will be wrong, since all
1506         // the Dom elements are initially zero-sized
1507         NETDATA.parseDom();
1508
1509         // let it run (update the charts)
1510         NETDATA.unpause();
1511
1512         // check if we have to jump to a specific section
1513         var hash = location.hash.replace('#','');
1514         if(hash != '') {
1515                 // Clear the hash in the URL
1516                 // location.hash = '';   // delete front "//" if you want to change the address bar
1517                 var offset = $(location.hash).offset();
1518                 if(typeof offset !== 'undefined')
1519                         $('html, body').animate({ scrollTop: offset.top }, 0);
1520         }
1521
1522         /* activate bootstrap sidebar (affix) */
1523         $('#sidebar').affix({
1524                 offset: {
1525                         top: (document.location.hostname === demo_hostname)?150:0,
1526                         bottom: 0
1527                 }
1528         });
1529
1530         /* fix scrolling of very long affix lists
1531            http://stackoverflow.com/questions/21691585/bootstrap-3-1-0-affix-too-long
1532          */
1533         $('#sidebar').on('affixed.bs.affix', function() {
1534                 $(this).removeAttr('style');
1535         });
1536
1537         /* activate bootstrap scrollspy (needed for sidebar) */
1538         $(document.body).scrollspy({
1539                 target: '#sidebar',
1540                 offset: $(window).height() / 3 // controls the diff of the <hX> element to the top, to select it
1541         });
1542
1543         document.getElementById('footer').style.display = 'block';
1544
1545
1546         var update_options_modal = function() {
1547                 // console.log('update_options_modal');
1548
1549                 var sync_option = function(option) {
1550                         var self = $('#' + option);
1551
1552                         if(self.prop('checked') !== NETDATA.getOption(option)) {
1553                                 // console.log('switching ' + option.toString());
1554                                 self.bootstrapToggle(NETDATA.getOption(option)?'on':'off');
1555                         }
1556                 }
1557
1558                 sync_option('eliminate_zero_dimensions');
1559                 sync_option('destroy_on_hide');
1560                 sync_option('parallel_refresher');
1561                 sync_option('concurrent_refreshes');
1562                 sync_option('sync_selection');
1563                 sync_option('sync_pan_and_zoom');
1564                 sync_option('stop_updates_when_focus_is_lost');
1565                 sync_option('smooth_plot');
1566                 sync_option('pan_and_zoom_data_padding');
1567
1568                 if(NETDATA.getOption('parallel_refresher') === false) {
1569                         $('#concurrent_refreshes_row').hide();
1570                 }
1571                 else {
1572                         $('#concurrent_refreshes_row').show();
1573                 }
1574         };
1575         NETDATA.setOption('setOptionCallback', update_options_modal);
1576
1577         // handle options changes
1578         $('#eliminate_zero_dimensions').change(function()       { NETDATA.setOption('eliminate_zero_dimensions', $(this).prop('checked')); });
1579         $('#destroy_on_hide').change(function()                 { NETDATA.setOption('destroy_on_hide', $(this).prop('checked')); });
1580         $('#parallel_refresher').change(function()              { NETDATA.setOption('parallel_refresher', $(this).prop('checked')); });
1581         $('#concurrent_refreshes').change(function()            { NETDATA.setOption('concurrent_refreshes', $(this).prop('checked')); });
1582         $('#sync_selection').change(function()                  { NETDATA.setOption('sync_selection', $(this).prop('checked')); });
1583         $('#sync_pan_and_zoom').change(function()               { NETDATA.setOption('sync_pan_and_zoom', $(this).prop('checked')); });
1584         $('#stop_updates_when_focus_is_lost').change(function() { NETDATA.setOption('stop_updates_when_focus_is_lost', $(this).prop('checked')); });
1585         $('#smooth_plot').change(function()                     { NETDATA.setOption('smooth_plot', $(this).prop('checked')); });
1586         $('#pan_and_zoom_data_padding').change(function()       { NETDATA.setOption('pan_and_zoom_data_padding', $(this).prop('checked')); });
1587
1588         if(document.location.hostname === demo_hostname)
1589                 setTimeout(function() {
1590                         $('#welcomeModal').modal();
1591                 }, 1000);
1592 }
1593
1594 downloadAllCharts();
1595
1596 </script>
1597
1598 </body>
1599 </html>