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<div id="app"><!--[--><div class="theme-container"><!--[--><header class="navbar"><div class="toggle-sidebar-button" title="切换侧边栏" aria-expanded="false" role="button" tabindex="0"><div class="icon" aria-hidden="true"><span></span><span></span><span></span></div></div><span><a href="/" class="" data-v-a8869d06><!----><span class="site-name can-hide" data-v-a8869d06>arthas</span><span class="navbar-version" data-v-a8869d06>v4.0.4</span></a></span><div class="navbar-items-wrapper" style=""><!--[--><!--]--><nav class="navbar-items can-hide"><!--[--><div class="navbar-item"><a href="/" class="" aria-label="首页"><!--[--><!--]--> 首页 <!--[--><!--]--></a></div><div class="navbar-item"><a class="external-link" href="/doc/arthas-tutorials.html?language=cn&id=arthas-basics" rel="noopener noreferrer" target="_blank" aria-label="在线教程"><!--[--><!--]--><span>在线教程</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/" class="router-link-active" aria-label="文档"><!--[--><!--]--> 文档 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/commands.md" class="" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/download.md" class="" aria-label="下载"><!--[--><!--]--> 下载 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/expert/intro.md" class="" aria-label="专家答疑"><!--[--><!--]--> 专家答疑 <!--[--><!--]--></a></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="版本"><span class="title">版本</span><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="版本"><span class="title">版本</span><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a class="external-link" href="https://arthas.aliyun.com/3.x/" rel="noopener noreferrer" target="_blank" aria-label="v3.x"><!--[--><!--]--><span>v3.x</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .7
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RUNTIME
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--------------------------------------------------------------------------------------------------------------
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MACHINE-NAME 37@ff267334bb65
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JVM-START-TIME 2020-07-23 07:50:36
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MANAGEMENT-SPEC-VERSION 1.2
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SPEC-NAME Java Virtual Machine Specification
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SPEC-VENDOR Oracle Corporation
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SPEC-VERSION 1.8
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VM-NAME Java HotSpot(TM) 64-Bit Server VM
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VM-VENDOR Oracle Corporation
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VM-VERSION 25.201-b09
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INPUT-ARGUMENTS []
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CLASS-PATH demo-arthas-spring-boot.jar
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BOOT-CLASS-PATH /usr/lib/jvm/java-8-oracle/jre/lib/resources.jar:/usr/lib/jvm/java-8-oracle/j
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re/lib/rt.jar:/usr/lib/jvm/java-8-oracle/jre/lib/sunrsasign.jar:/usr/lib/jvm/
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java-8-oracle/jre/lib/jsse.jar:/usr/lib/jvm/java-8-oracle/jre/lib/jce.jar:/us
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r/lib/jvm/java-8-oracle/jre/lib/charsets.jar:/usr/lib/jvm/java-8-oracle/jre/l
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ib/jfr.jar:/usr/lib/jvm/java-8-oracle/jre/classes
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LIBRARY-PATH /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
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--------------------------------------------------------------------------------------------------------------
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CLASS-LOADING
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--------------------------------------------------------------------------------------------------------------
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LOADED-CLASS-COUNT 7529
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TOTAL-LOADED-CLASS-COUNT 7529
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UNLOADED-CLASS-COUNT 0
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IS-VERBOSE false
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--------------------------------------------------------------------------------------------------------------
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COMPILATION
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--------------------------------------------------------------------------------------------------------------
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NAME HotSpot 64-Bit Tiered Compilers
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TOTAL-COMPILE-TIME 14921(ms)
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--------------------------------------------------------------------------------------------------------------
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GARBAGE-COLLECTORS
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--------------------------------------------------------------------------------------------------------------
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PS Scavenge name : PS Scavenge
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[count/time (ms)] collectionCount : 7
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collectionTime : 68
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PS MarkSweep name : PS MarkSweep
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[count/time (ms)] collectionCount : 1
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collectionTime : 47
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--------------------------------------------------------------------------------------------------------------
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MEMORY-MANAGERS
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--------------------------------------------------------------------------------------------------------------
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CodeCacheManager Code Cache
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Metaspace Manager Metaspace
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Compressed Class Space
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Copy Eden Space
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Survivor Space
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MarkSweepCompact Eden Space
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Survivor Space
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Tenured Gen
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--------------------------------------------------------------------------------------------------------------
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MEMORY
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--------------------------------------------------------------------------------------------------------------
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HEAP-MEMORY-USAGE init : 268435456(256.0 MiB)
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[memory in bytes] used : 18039504(17.2 MiB)
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committed : 181403648(173.0 MiB)
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max : 3817865216(3.6 GiB)
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NO-HEAP-MEMORY-USAGE init : 2555904(2.4 MiB)
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[memory in bytes] used : 33926216(32.4 MiB)
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committed : 35176448(33.5 MiB)
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max : -1(-1 B)
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--------------------------------------------------------------------------------------------------------------
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OPERATING-SYSTEM
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--------------------------------------------------------------------------------------------------------------
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OS Linux
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ARCH amd64
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PROCESSORS-COUNT 3
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LOAD-AVERAGE 29.53
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VERSION 4.15.0-52-generic
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--------------------------------------------------------------------------------------------------------------
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THREAD
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--------------------------------------------------------------------------------------------------------------
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COUNT 30
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DAEMON-COUNT 24
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PEAK-COUNT 31
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STARTED-COUNT 36
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DEADLOCK-COUNT 0
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--------------------------------------------------------------------------------------------------------------
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FILE-DESCRIPTOR
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--------------------------------------------------------------------------------------------------------------
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MAX-FILE-DESCRIPTOR-COUNT 1048576
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OPEN-FILE-DESCRIPTOR-COUNT 100
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Affect(row-cnt:0) cost in 88 ms.
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="thread-相关" tabindex="-1"><a class="header-anchor" href="#thread-相关" aria-hidden="true">#</a> THREAD 相关</h2><ul><li>COUNT: JVM 当前活跃的线程数</li><li>DAEMON-COUNT: JVM 当前活跃的守护线程数</li><li>PEAK-COUNT: 从 JVM 启动开始曾经活着的最大线程数</li><li>STARTED-COUNT: 从 JVM 启动开始总共启动过的线程次数</li><li>DEADLOCK-COUNT: JVM 当前死锁的线程数</li></ul><h2 id="文件描述符相关" tabindex="-1"><a class="header-anchor" href="#文件描述符相关" aria-hidden="true">#</a> 文件描述符相关</h2><ul><li>MAX-FILE-DESCRIPTOR-COUNT:JVM 进程最大可以打开的文件描述符数</li><li>OPEN-FILE-DESCRIPTOR-COUNT:JVM 当前打开的文件描述符数</li></ul></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-fdd717e0><div class="meta-item edit-link"><a class="external-link meta-item-label" href="https://github.com/alibaba/arth
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