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< h1 > jvm< a class = "headerlink" href = "#jvm" title = "永久链接至标题" > ¶< / a > < / h1 >
< blockquote >
< div > < p > 查看当前JVM信息< / p >
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< h2 > 使用参考< a class = "headerlink" href = "#id1" title = "永久链接至标题" > ¶< / a > < / h2 >
< div class = "highlight-default notranslate" > < pre class = "literal-block" > $ 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 1073741824(1.00 GiB)/1073741824(1.00 GiB)/5242880000(4.88 GiB)/278637584(265.73 MiB)
[committed/init/max/used]
NO-HEAP-MEMORY-USAGE 172597248(164.60 MiB)/2555904(2.44 MiB)/1862270976(1.73 GiB)/166521144(158.81 MiB)
[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
PEAK-COUNT 18
STARTED-COUNT 19
DEADLOCK-COUNT 0
FILE-DESCRIPTOR
MAX-FILE-DESCRIPTOR-COUNT 10240
OPEN-FILE-DESCRIPTOR-COUNT 648
Affect cost in 2 ms.< / pre >
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< h2 > THREAD相关< a class = "headerlink" href = "#thread" title = "永久链接至标题" > ¶< / a > < / h2 >
< ul class = "simple" >
< li > < p > COUNT: JVM当前活跃的线程数< / p > < / li >
< li > < p > DAEMON-COUNT: JVM当前活跃的守护线程数< / p > < / li >
< li > < p > PEAK-COUNT: 从JVM启动开始曾经活着的最大线程数< / p > < / li >
< li > < p > STARTED-COUNT: 从JVM启动开始总共启动过的线程次数< / p > < / li >
< li > < p > DEADLOCK-COUNT: JVM当前死锁的线程数< / p > < / li >
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< h2 > 文件描述符相关< a class = "headerlink" href = "#id2" title = "永久链接至标题" > ¶< / a > < / h2 >
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< li > < p > MAX-FILE-DESCRIPTOR-COUNT： < / p > < / li >
< li > < p > OPEN-FILE-DESCRIPTOR-COUNT： < / p > < / li >
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