Arthas jvm（查看当前 JVM 的信息）
作者：刘大猫
- 2025-05-21 黑龙江
本文字数：9382 字
阅读完需：约 31 分钟
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二、命令列表
2.1 jvm 相关命令
2.1.3 jvm（查看当前 JVM 的信息）
基础语法：jvm
[arthas@18139]$ jvm RUNTIME ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- MACHINE-NAME 18139@localhost.localdomain JVM-START-TIME 2024-09-12 09:54:18 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 25.121-b13 INPUT-ARGUMENTS -Xmx3g -Xms3g -Xmn1152m CLASS-PATH .:/home/ems/ems_eam/../:/home/ems/ems_eam/lib/spring-webmvc-4.2.3.RELEASE.jarBOOT-CLASS-PATH /home/ems/3rdparty/java/jre/lib/resources.jar:/home/ems/3rdparty/java/jre/lib/rt.jar:/home/ems/3rdparty/java/jre/lib/sunrsasign.jar:/home/ems/3rdparty/java/jre/lib/ jsse.jar:/home/ems/3rdparty/java/jre/lib/jce.jar:/home/ems/3rdparty/java/jre/lib/charsets.jar:/home/ems/3rdparty/java/jre/lib/jfr.jar:/home/ems/3rdparty/java/jre/cl asses LIBRARY-PATH /home/ems/ems_eam/lib ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CLASS-LOADING ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- LOADED-CLASS-COUNT 17497 TOTAL-LOADED-CLASS-COUNT 17497 UNLOADED-CLASS-COUNT 0 IS-VERBOSE false ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- COMPILATION ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- NAME HotSpot 64-Bit Tiered Compilers TOTAL-COMPILE-TIME 138561(ms) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- GARBAGE-COLLECTORS ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ParNew 38/1969(ms) [count/time] ConcurrentMarkSweep 3/313(ms) [count/time] ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- MEMORY-MANAGERS ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CodeCacheManager Code Cache Metaspace Manager Metaspace Compressed Class Space ParNew Par Eden Space Par Survivor Space ConcurrentMarkSweep Par Eden Space Par Survivor Space CMS Old Gen ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- MEMORY ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- HEAP-MEMORY-USAGE 2919235584(2.7 GiB)/3221225472(3.0 GiB)/2919235584(2.7 GiB)/561145840(535.2 MiB) [committed/init/max/used] NO-HEAP-MEMORY-USAGE 192172032(183.3 MiB)/2555904(2.4 MiB)/-1(-1 B)/187781984(179.1 MiB) [committed/init/max/used] PENDING-FINALIZE-COUNT 0 ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- OPERATING-SYSTEM ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- OS Linux ARCH amd64 PROCESSORS-COUNT 8 LOAD-AVERAGE 0.07 VERSION 3.10.0-1160.el7.x86_64 ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- THREAD ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- COUNT 286 DAEMON-COUNT 38 PEAK-COUNT 295 STARTED-COUNT 5190 DEADLOCK-COUNT 0 ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- FILE-DESCRIPTOR ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- MAX-FILE-DESCRIPTOR-COUNT 10240 OPEN-FILE-DESCRIPTOR-COUNT 913 Affect(row-cnt:0) cost in 15 ms.[arthas@18139]$
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本人其他相关文章链接
1.Arthas 全攻略：让调试变得简单2.Arthas dashboard（当前系统的实时数据面板）3.Arthas thread（查看当前JVM的线程堆栈信息）4.Arthas jvm（查看当前JVM的信息）5.Arthas sysprop（查看和修改JVM的系统属性）6.Arthas sysenv（查看JVM的环境变量）7.Arthas vmoption（查看和修改 JVM里诊断相关的option）8.Arthas getstatic（查看类的静态属性 ）9.Arthas heapdump（dump java heap, 类似 jmap 命令的 heap dump 功能）10.Arthas logger（查看 logger 信息，更新 logger level）11.Arthas mbean（查看 Mbean 的信息）12.Arthas memory（查看 JVM 内存信息）13.Arthas ognl（执行ognl表达式）14.Arthas perfcounter（查看当前 JVM 的 Perf Counter 信息）15.Arthas vmtool（从 jvm 里查询对象，执行 forceGc）16.Arthas jad（字节码文件反编译成源代码 ）17.Arthas mc（Memory Compiler/内存编译器 ）18.Arthas redefine（加载外部的.class文件，redefine到JVM里 ）19.Arthas classloader （查看 classloader 的继承树，urls，类加载信息）20.Arthas sc（查看JVM已加载的类信息 ）21.Arthas sm（查看已加载类的方法信息 ）22.Arthas monitor（方法执行监控）23.Arthas stack （输出当前方法被调用的调用路径）24.Arthas trace （方法内部调用路径，并输出方法路径上的每个节点上耗时）25.Arthas tt（方法执行数据的时空隧道，记录下指定方法每次调用的入参和返回信息，并能对这些不同的时间下调用进行观测）26.Arthas watch （方法执行数据观测）27.Arthas profiler（使用async-profiler对应用采样，生成火焰图）
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