|
|
|
|
|
|
|
|
<!DOCTYPE html>
|
|
|
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
|
|
|
<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
|
|
|
<head>
|
|
|
<meta charset="utf-8">
|
|
|
|
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
|
|
|
|
<title>jvm — Arthas 3.3.7 documentation</title>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<link rel="shortcut icon" href="_static/favicon.ico"/>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<script type="text/javascript" src="_static/js/modernizr.min.js"></script>
|
|
|
|
|
|
|
|
|
<script type="text/javascript" id="documentation_options" data-url_root="./" src="_static/documentation_options.js"></script>
|
|
|
<script type="text/javascript" src="_static/jquery.js"></script>
|
|
|
<script type="text/javascript" src="_static/underscore.js"></script>
|
|
|
<script type="text/javascript" src="_static/doctools.js"></script>
|
|
|
<script type="text/javascript" src="_static/language_data.js"></script>
|
|
|
|
|
|
<script type="text/javascript" src="_static/js/theme.js"></script>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
|
|
|
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
|
|
|
<link rel="stylesheet" href="_static/overrides.css" type="text/css" />
|
|
|
<link rel="index" title="Index" href="genindex.html" />
|
|
|
<link rel="search" title="Search" href="search.html" />
|
|
|
<link rel="next" title="sysprop" href="sysprop.html" />
|
|
|
<link rel="prev" title="thread" href="thread.html" />
|
|
|
<script src="_static/center_page.js"></script>
|
|
|
<link rel="stylesheet" href="https://g.alicdn.com/code/lib/highlight.js/9.13.1/styles/github.min.css">
|
|
|
|
|
|
|
|
|
</head>
|
|
|
|
|
|
<body class="wy-body-for-nav">
|
|
|
|
|
|
|
|
|
<div class="wy-grid-for-nav">
|
|
|
|
|
|
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
|
|
|
<div class="wy-side-scroll">
|
|
|
<div class="wy-side-nav-search" >
|
|
|
|
|
|
|
|
|
|
|
|
<a href="index.html" class="icon icon-home"> Arthas
|
|
|
|
|
|
|
|
|
|
|
|
</a>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="version">
|
|
|
3.3.7
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div role="search">
|
|
|
<form id="rtd-search-form" class="wy-form" action="search.html" method="get">
|
|
|
<input type="text" name="q" placeholder="Search docs" />
|
|
|
<input type="hidden" name="check_keywords" value="yes" />
|
|
|
<input type="hidden" name="area" value="default" />
|
|
|
</form>
|
|
|
</div>
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<ul class="current">
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="download.html">Download</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
|
|
|
<li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
|
|
|
<li class="toctree-l2"><a class="reference internal" href="dashboard.html">dashboard</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="thread.html">thread</a></li>
|
|
|
<li class="toctree-l2 current"><a class="current reference internal" href="#">jvm</a><ul>
|
|
|
<li class="toctree-l3"><a class="reference internal" href="#usage">Usage</a></li>
|
|
|
<li class="toctree-l3"><a class="reference internal" href="#thread-related">Thread related</a></li>
|
|
|
<li class="toctree-l3"><a class="reference internal" href="#file-descriptor-related">File descriptor related</a></li>
|
|
|
</ul>
|
|
|
</li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="sysprop.html">sysprop</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="sysenv.html">sysenv</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="vmoption.html">vmoption</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="perfcounter.html">perfcounter</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="logger.html">logger</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="mbean.html">mbean</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="getstatic.html">getstatic</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="ognl.html">ognl</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="sc.html">sc</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="sm.html">sm</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="heapdump.html">heapdump</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="profiler.html">profiler</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="echo.html">echo</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="grep.html">grep</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="tee.html">tee</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
|
|
|
</ul>
|
|
|
</li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="web-console.html">WebConsole</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="docker.html">Docker</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="spring-boot-starter.html">Arthas Spring Boot Starter</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Auser-case">User cases</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Aquestion-answered">Questions and answers</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas">Fork me at GitHub</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md#">Compile and debug/CONTRIBUTING</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/releases">Release Notes</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="contact-us.html">Contact us</a></li>
|
|
|
</ul>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
</div>
|
|
|
</nav>
|
|
|
|
|
|
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
|
|
|
|
|
|
|
|
|
<nav class="wy-nav-top" aria-label="top navigation">
|
|
|
|
|
|
<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
|
|
|
<a href="index.html">Arthas</a>
|
|
|
|
|
|
</nav>
|
|
|
|
|
|
|
|
|
<div class="wy-nav-content">
|
|
|
|
|
|
<div class="rst-content">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div role="navigation" aria-label="breadcrumbs navigation">
|
|
|
|
|
|
<ul class="wy-breadcrumbs">
|
|
|
|
|
|
<li><a href="index.html">Docs</a> »</li>
|
|
|
|
|
|
<li><a href="commands.html">All Commands</a> »</li>
|
|
|
|
|
|
<li>jvm</li>
|
|
|
|
|
|
|
|
|
<li class="wy-breadcrumbs-aside">
|
|
|
|
|
|
|
|
|
|
|
|
<a href="https://github.com/alibaba/arthas/blob/master/site/src/site/sphinx/en/jvm.md" class="fa fa-github"> Edit on GitHub</a>
|
|
|
|
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
|
|
|
|
|
<hr/>
|
|
|
</div>
|
|
|
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
|
|
|
<div itemprop="articleBody">
|
|
|
|
|
|
<div class="section" id="jvm">
|
|
|
<h1>jvm<a class="headerlink" href="#jvm" title="Permalink to this headline">¶</a></h1>
|
|
|
<p><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en&id=command-sysenv"><code class="docutils literal notranslate"><span class="pre">sysenv</span></code> online tutorial</a></p>
|
|
|
<blockquote>
|
|
|
<div><p>Check the current JVM’s info</p>
|
|
|
</div></blockquote>
|
|
|
<div class="section" id="usage">
|
|
|
<h2>Usage<a class="headerlink" href="#usage" title="Permalink to this headline">¶</a></h2>
|
|
|
<div class="highlight-default notranslate"><pre class="literal-block">$ jvm
|
|
|
RUNTIME
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
MACHINE-NAME 37@ff267334bb65
|
|
|
JVM-START-TIME 2020-07-23 07:50:36
|
|
|
MANAGEMENT-SPEC-VERSION 1.2
|
|
|
SPEC-NAME Java Virtual Machine Specification
|
|
|
SPEC-VENDOR Oracle Corporation
|
|
|
SPEC-VERSION 1.8
|
|
|
VM-NAME Java HotSpot(TM) 64-Bit Server VM
|
|
|
VM-VENDOR Oracle Corporation
|
|
|
VM-VERSION 25.201-b09
|
|
|
INPUT-ARGUMENTS []
|
|
|
CLASS-PATH demo-arthas-spring-boot.jar
|
|
|
BOOT-CLASS-PATH /usr/lib/jvm/java-8-oracle/jre/lib/resources.jar:/usr/lib/jvm/java-8-oracle/j
|
|
|
re/lib/rt.jar:/usr/lib/jvm/java-8-oracle/jre/lib/sunrsasign.jar:/usr/lib/jvm/
|
|
|
java-8-oracle/jre/lib/jsse.jar:/usr/lib/jvm/java-8-oracle/jre/lib/jce.jar:/us
|
|
|
r/lib/jvm/java-8-oracle/jre/lib/charsets.jar:/usr/lib/jvm/java-8-oracle/jre/l
|
|
|
ib/jfr.jar:/usr/lib/jvm/java-8-oracle/jre/classes
|
|
|
LIBRARY-PATH /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
|
|
|
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
CLASS-LOADING
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
LOADED-CLASS-COUNT 7529
|
|
|
TOTAL-LOADED-CLASS-COUNT 7529
|
|
|
UNLOADED-CLASS-COUNT 0
|
|
|
IS-VERBOSE false
|
|
|
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
COMPILATION
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
NAME HotSpot 64-Bit Tiered Compilers
|
|
|
TOTAL-COMPILE-TIME 14921(ms)
|
|
|
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
GARBAGE-COLLECTORS
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
PS Scavenge name : PS Scavenge
|
|
|
[count/time (ms)] collectionCount : 7
|
|
|
collectionTime : 68
|
|
|
|
|
|
PS MarkSweep name : PS MarkSweep
|
|
|
[count/time (ms)] collectionCount : 1
|
|
|
collectionTime : 47
|
|
|
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
MEMORY-MANAGERS
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
CodeCacheManager Code Cache
|
|
|
|
|
|
Metaspace Manager Metaspace
|
|
|
Compressed Class Space
|
|
|
|
|
|
Copy Eden Space
|
|
|
Survivor Space
|
|
|
|
|
|
MarkSweepCompact Eden Space
|
|
|
Survivor Space
|
|
|
Tenured Gen
|
|
|
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
MEMORY
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
HEAP-MEMORY-USAGE init : 268435456(256.0 MiB)
|
|
|
[memory in bytes] used : 18039504(17.2 MiB)
|
|
|
committed : 181403648(173.0 MiB)
|
|
|
max : 3817865216(3.6 GiB)
|
|
|
|
|
|
NO-HEAP-MEMORY-USAGE init : 2555904(2.4 MiB)
|
|
|
[memory in bytes] used : 33926216(32.4 MiB)
|
|
|
committed : 35176448(33.5 MiB)
|
|
|
max : -1(-1 B)
|
|
|
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
OPERATING-SYSTEM
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
OS Linux
|
|
|
ARCH amd64
|
|
|
PROCESSORS-COUNT 3
|
|
|
LOAD-AVERAGE 29.53
|
|
|
VERSION 4.15.0-52-generic
|
|
|
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
THREAD
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
COUNT 30
|
|
|
DAEMON-COUNT 24
|
|
|
PEAK-COUNT 31
|
|
|
STARTED-COUNT 36
|
|
|
DEADLOCK-COUNT 0
|
|
|
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
FILE-DESCRIPTOR
|
|
|
--------------------------------------------------------------------------------------------------------------
|
|
|
MAX-FILE-DESCRIPTOR-COUNT 1048576
|
|
|
OPEN-FILE-DESCRIPTOR-COUNT 100
|
|
|
Affect(row-cnt:0) cost in 88 ms.</pre>
|
|
|
</div>
|
|
|
</div>
|
|
|
<div class="section" id="thread-related">
|
|
|
<h2>Thread related<a class="headerlink" href="#thread-related" title="Permalink to this headline">¶</a></h2>
|
|
|
<ul class="simple">
|
|
|
<li><p>COUNT: the count of active threads</p></li>
|
|
|
<li><p>DAEMON-COUNT: the count of active daemon threads</p></li>
|
|
|
<li><p>PEAK-COUNT: the maximum count of the live threads since JVM starts</p></li>
|
|
|
<li><p>STARTED-COUNT: the total count of the created threads since JVM starts</p></li>
|
|
|
<li><p>DEADLOCK-COUNT: the count of deadlocked threads</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
<div class="section" id="file-descriptor-related">
|
|
|
<h2>File descriptor related<a class="headerlink" href="#file-descriptor-related" title="Permalink to this headline">¶</a></h2>
|
|
|
<ul class="simple">
|
|
|
<li><p>MAX-FILE-DESCRIPTOR-COUNT：the count of max file descriptor JVM process can open</p></li>
|
|
|
<li><p>OPEN-FILE-DESCRIPTOR-COUNT：the current count of file descriptor JVM process open</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
</div>
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
<footer>
|
|
|
|
|
|
<div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
|
|
|
|
|
|
<a href="sysprop.html" class="btn btn-neutral float-right" title="sysprop" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
|
|
|
|
|
|
|
|
|
<a href="thread.html" class="btn btn-neutral float-left" title="thread" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
<hr/>
|
|
|
|
|
|
<div role="contentinfo">
|
|
|
<p>
|
|
|
© Copyright 2018-2020, Alibaba Middleware Group, and contributors
|
|
|
|
|
|
</p>
|
|
|
</div>
|
|
|
Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
|
|
|
|
|
|
</footer>
|
|
|
|
|
|
</div>
|
|
|
</div>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<script type="text/javascript">
|
|
|
jQuery(function () {
|
|
|
SphinxRtdTheme.Navigation.enable(true);
|
|
|
});
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="github-fork-ribbon-wrapper right">
|
|
|
<div class="github-fork-ribbon">
|
|
|
<a href="https://github.com/alibaba/arthas" target="_blank">Fork me at GitHub</a>
|
|
|
</div>
|
|
|
</div>
|
|
|
|
|
|
<script type="text/javascript" src="_static/add_badges.js"></script>
|
|
|
|
|
|
<script src="https://g.alicdn.com/code/lib/highlight.js/9.13.1/highlight.min.js"></script>
|
|
|
<script src="https://g.alicdn.com/code/lib/highlightjs-line-numbers.js/2.5.0/highlightjs-line-numbers.min.js"></script>
|
|
|
<script>
|
|
|
document.querySelectorAll('div.hljs > pre').forEach(function(block) {
|
|
|
hljs.highlightBlock(block);
|
|
|
hljs.lineNumbersBlock(block);
|
|
|
});
|
|
|
</script>
|
|
|
|
|
|
<script>
|
|
|
var _hmt = _hmt || [];
|
|
|
(function() {
|
|
|
var hm = document.createElement("script");
|
|
|
if (window.location.hostname == "arthas.gitee.io") {
|
|
|
hm.src = "https://hm.baidu.com/hm.js?ecc1b0d9aeb73da1671876133211d4d3";
|
|
|
} else { // https://alibaba.github.io/arthas/
|
|
|
hm.src = "https://hm.baidu.com/hm.js?d5c5e25b100f0eb51a4c35c8a86ea9b4";
|
|
|
}
|
|
|
|
|
|
var s = document.getElementsByTagName("script")[0];
|
|
|
s.parentNode.insertBefore(hm, s);
|
|
|
})();
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
</body>
|
|
|
</html> |