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Add English doc for JVM command.

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pull/1204/head
Huxing Zhang 7 years ago committed by GitHub
parent 079fb31dfb e33b8953f7
commit d94e5936b1
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site/src/site/sphinx/en/jvm.md
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jvm
===
Check the JVM profile
### Usage
```
$ jvm
CATEGORY INFO
------------------------------------------------------------------------------------------------------------------------------------
RUNTIME MACHINE-NAME hellodeMacBook-Air.local
JVM-START-TIME 2015-12-23 10:54:18
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 25.60-b23
INPUT-ARGUMENTS -Xbootclasspath/a:/Users/hello/.jenv/versions/1.8/lib/tools.jar
-Djava.util.logging.config.file=/Users/hello/code/java/crash/packaging/target/
conf/logging.properties
CLASS-PATH /Users/hello/.jenv/versions/1.8/lib/tools.jar:/Users/hello/code/java/cras
h/packaging/target/bin/crash.cli-1.3.2-SNAPSHOT.jar::/Users/hello/code/java/cr
ash/packaging/target/lib/bcpkix-jdk15on-1.51.jar:/Users/hello/code/java/crash/
packaging/target/lib/bcprov-jdk15on-1.51.jar:/Users/hello/code/java/crash/pack
aging/target/lib/crash.connectors.ssh-1.3.2-SNAPSHOT-standalone.jar:/Users/hengyuna
bc/code/java/crash/packaging/target/lib/crash.connectors.telnet-1.3.2-SNAPSHOT-stan
dalone.jar:/Users/hello/code/java/crash/packaging/target/lib/crash.shell-1.3.2
-SNAPSHOT.jar:/Users/hello/code/java/crash/packaging/target/lib/groovy-all-1.8
.9.jar:/Users/hello/code/java/crash/packaging/target/lib/ivy-2.2.0.jar
BOOT-CLASS-PATH /Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/lib/resources.j
ar:/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/lib/rt.jar:/
Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/lib/sunrsasign.j
ar:/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/lib/jsse.jar
:/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/lib/jce.jar:/L
ibrary/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/lib/charsets.jar:
/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/lib/jfr.jar:/Li
brary/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/classes:/Users/hen
gyunabc/.jenv/versions/1.8/lib/tools.jar
LIBRARY-PATH /Users/hello/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library
/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
CLASS-LOADING LOADED-CLASS-COUNT 4264
TOTAL-LOADED-CLASS-COUNT 4264
UNLOADED-CLASS-COUNT 0
IS-VERBOSE false
COMPILATION NAME HotSpot 64-Bit Tiered Compilers
TOTAL-COMPILE-TIME 5145(ms)
GARBAGE-COLLECTORS PS Scavenge 6/74(ms)
[count/time]
PS MarkSweep 1/64(ms)
[count/time]
MEMORY-MANAGERS CodeCacheManager Code Cache
Metaspace Manager Metaspace
Compressed Class Space
PS Scavenge PS Eden Space
PS Survivor Space
PS MarkSweep PS Eden Space
PS Survivor Space
PS Old Gen
MEMORY HEAP-MEMORY-USAGE 186646528/134217728/1908932608/31245568
[committed/init/max/used]
NO-HEAP-MEMORY-USAGE 35520512/2555904/-1/34584616
[committed/init/max/used]
PENDING-FINALIZE-COUNT 0
OPERATING-SYSTEM OS Mac OS X
ARCH x86_64
PROCESSORS-COUNT 4
LOAD-AVERAGE 2.328125
VERSION 10.10.5
THREAD COUNT 16
DAEMON-COUNT 10
LIVE-COUNT 18
STARTED-COUNT 19
Affect cost in 2 ms.
```
### thread-related
* COUNT: the count of active threads
* DAEMON-COUNT: the count of active daemon threads
* LIVE-COUNT: the maximum count of the live threads since JVM starts
* STARTED-COUNT: the total count of the created threads since JVM starts
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