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<!DOCTYPE html>
<!-- Copyright 2020 the V8 project authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file. -->
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Indicium</title>
<!-- <link rel="icon" type="image/png" href="/images/favicon.png"/> -->
<link rel="modulepreload" href="./helper.mjs" >
<link rel="modulepreload" href="./view/log-file-reader.mjs" >
<link rel="modulepreload" href="./view/helper.mjs" >
<link rel="preload" href="../js/log-file-reader-template.html" as="fetch" crossorigin="anonymous">
<script type="module">
// Force instantiating the log-reader before anything else.
import "./view/log-file-reader.mjs";
// Delay loading of the main App
(async function() {
let module = await import('./index.mjs');
globalThis.app = new module.App();
})();
</script>
<link rel="stylesheet" type="text/css" href="./index.css">
<style>
#container.initial {
display: none;
}
#timeline-panel {
width: 100%;
}
.panels {
display: grid;
align-content: center;
grid-template-columns: repeat(auto-fill, minmax(600px, 1fr));
grid-auto-flow: row dense;
grid-gap: 10px;
margin-top: 10px;
}
dt::after {
content: ":";
}
</style>
</head>
<body>
<tool-tip id="tool-tip" style="will-change: transform"></tool-tip>
<section id="file-reader">
<log-file-reader id="log-file-reader"></log-file-reader>
</section>
<section id="container" class="initial">
<timeline-panel id="timeline-panel">
<timeline-track-tick id="tick-track" title="Samples"></timeline-track-tick>
<timeline-track-timer id="timer-track" title="Timers"></timeline-track-timer>
<timeline-track-map id="map-track" title="Map"></timeline-track-map>
<timeline-track id="ic-track" title="IC"></timeline-track>
<timeline-track id="deopt-track" title="Deopt"></timeline-track>
<timeline-track id="code-track" title="Code"></timeline-track>
</timeline-panel>
<div class="panels">
<script-panel id="script-panel"></script-panel>
<code-panel id="code-panel"></code-panel>
<map-panel id="map-panel"></map-panel>
<list-panel id="ic-list" title="IC List">
<div class="legend">
<h3>Legend</h3>
<dl>
<dt>0</dt>
<dd>uninitialized</dd>
<dt>X</dt>
<dd>no feedback</dd>
<dt>1</dt>
<dd>monomorphic</dd>
<dt>^</dt>
<dd>recompute handler</dd>
<dt>P</dt>
<dd>polymorphic</dd>
<dt>N</dt>
<dd>megamorphic</dd>
<dt>G</dt>
<dd>generic</dd>
</dl>
</div>
</list-panel>
<list-panel id="map-list" title="Map Events"></list-panel>
<list-panel id="deopt-list" title="Deopt Events"></list-panel>
<list-panel id="code-list" title="Code Events"></list-panel>
<profiler-panel id="profiler-panel"></profiler-panel>
</div>
</section>
<div class="panels">
<section id="instructions" class="panel">
<h2>Instructions</h2>
<div class="panelBody">
<p>
Unified web interface to analyse runtime information stored in the v8 log.
</p>
For generating a v8.log file from <a href="https://v8.dev/docs/build">d8</a>:
<ul>
<li>
<code>/path/do/d8 $LOG_FLAGS $FILE</code>
</li>
</ul>
For generating a v8.log file from Chrome:
<ul>
<li>
<code>/path/to/chrome --user-data-dir=/var/tmp/chr$RANDOM --no-sandbox
--js-flags='$LOG_FLAGS’
$WEBSITE_URL</code>
</li>
</ul>
<h3><code>LOG_FLAGS</code>:</h3>
<dl class="d8-options">
<dt>
<a href="https://source.chromium.org/search?q=v8_flags.log_all">
<code>--log-all</code>
</a>
</dt>
<dd>Enable all V8 logging options.</dd>
<dt>
<a href="https://source.chromium.org/search?q=v8_flags.trace_maps">
<code>--log-maps</code>
</a>
</dt>
<dd>
Log <a href="https://v8.dev/blog/fast-properties">Maps</a>
</dd>
<dt>
<a href="https://source.chromium.org/search?q=v8_flags.log_ic">
<code>--log-ic</code>
</a>
</dt>
<dd>
Log <a href="https://mathiasbynens.be/notes/shapes-ics">ICs</a>
</dd>
<dt>
<a href="https://source.chromium.org/search?q=v8_flags.log_source_code">
<code>--log-source-code</code>
</a>
</dt>
<dd>Log source code</dd>
<dt>
<a href="https://source.chromium.org/search?q=v8_flags.log_code_disassemble">
<code>--log-code-disassemble</code>
</a>
</dt>
<dd>Log detailed generated generated code</dd>
<dt>
<a href="https://source.chromium.org/search?q=v8_flags.log_code">
<code>--log-code</code>
</a>
</dt>
<dd>Log details about deoptimized code</dd>
<dt>
<a href="https://source.chromium.org/search?q=v8_flags.log_deopt">
<code>--log-deopt</code>
</a>
</dt>
<dd>Log various API uses.</dd>
<dt>
<a href="https://source.chromium.org/search?q=v8_flags.prof">
<code>--prof</code>
</a>
</dt>
<dd>Log ticks from the sampling profiler.</dd>
</dl>
<h3>Local Symbol Server</h3>
To get detailed C++ symbols for local binaries you can host the
system-analyzer locally using <code>tools/system-analyzer/local-server.sh</code>.
You can then access the analyzer on
<a href="http://localhost:8000/system-analyzer/index.html">localhost</a>.
<h3>Keyboard Shortcuts for Navigation</h3>
<dl>
<dt><kbd>CTRL</kbd> + <kbd>Mouse Move</kbd></dt>
<dd>Show tooltips immediately</dd>
<dt><kbd>A</kbd></dt>
<dd>Scroll left</dd>
<dt><kbd>D</kbd></dt>
<dd>Scroll right</dd>
<dt><kbd>SHIFT</kbd> + <kbd>Arrow Up</kbd></dt>
<dd>Follow Map transition forward (first child)</dd>
<dt><kbd>SHIFT</kbd> + <kbd>Arrow Down</kbd></dt>
<dd>Follow Map transition backwards</dd>
<dt><kbd>Arrow Up</kbd></dt>
<dd>Go to previous Map chunk</dd>
<dt><kbd>Arrow Down</kbd></dt>
<dd>Go to next Map in chunk</dd>
<dt><kbd>Arrow Left</kbd></dt>
<dd>Go to previous chunk</dd>
<dt><kbd>Arrow Right</kbd></dt>
<dd>Go to next chunk</dd>
<dt><kbd>+</kbd></dt>
<dd>Timeline zoom in</dd>
<dt><kbd>-</kbd></dt>
<dd>Timeline zoom out</dd>
</dl>
</div>
</section>
</div>
</body>
</html>
|
