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  1. 10.05.12 22:13 #1
    Avatar von Thomas Darimont
    Thomas Darimont
    Thomas Darimont ist offline
    tutorials.de Administrator
    Registriert seit
    Jun 2002
    Ort
    Saarbrücken (Saarland)
    Beiträge
    10.135
    Hallo,

    mit JCMD (findet man im \bin-Verzeichnis der JDK 7 Installation zBsp: C:\Program Files\Java\jdk1.7.0_04\bin) kann man wie mit dem Tool jps JVM Prozesse auflisten.
    Zusätzlich kann man aber über sogenannte Diagnostic Commands verschiedene Informationen des Java Prozesses auslesen.

    schaut mal hier:
    http://hirt.se/blog/?p=211

    Beispiel:
    Code :
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    C:\Users\thomas.darimont>jcmd 3876 help
3876:
The following commands are available:
VM.commercial_features
ManagementAgent.stop
ManagementAgent.start_local
ManagementAgent.start
Thread.print
GC.class_histogram
GC.heap_dump
GC.run_finalization
GC.run
VM.uptime
VM.flags
VM.system_properties
VM.command_line
VM.version
help
 
For more information about a specific command use 'help <command>'.
 
C:\Users\thomas.darimont>jcmd 3876 VM.version
3876:
Java HotSpot(TM) 64-Bit Server VM version 23.0-b21
JDK 7.0_04

    Gruß Tom
    Cymatoxa und Funresort bedanken sich. 
    Java rocks! http://www.jugsaar.de
    How to become a good Java Programmer?
    Does IT in Java and .Net
    The only valid measurement of code quality: WTFs / minute
    Blog
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    Zitieren Zitieren
  2. 12.06.13 01:39 #2
    Avatar von Thomas Darimont
    Thomas Darimont
    Thomas Darimont ist offline
    tutorials.de Administrator
    Registriert seit
    Jun 2002
    Ort
    Saarbrücken (Saarland)
    Beiträge
    10.135
    Hallo,

    über das Command PerfCounter.print kann man sich einige interne Performance Counter (Kann man auch über VisualVM einsehen) eines Java Prozesses ausgeben lassen.

    Aufruf: (Ausgabe für Java Prozess mit PID 7968)
    Code :
    1

    C:\Program Files\Java\jdk1.8.0\bin>jcmd 7968 PerfCounter.print

    Ausgabe:
    Code :
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    7968:
java.ci.totalTime=5543943
java.cls.loadedClasses=6285
java.cls.sharedLoadedClasses=0
java.cls.sharedUnloadedClasses=0
java.cls.unloadedClasses=0
java.property.java.class.path="C:\tom\tools\visualvm_135\platform\lib\boot.jar;C:\tom\tools\visualvm_135\platform\lib\org-openide-modules.jar;C:\tom\tools\visualvm_135\platform\lib\org-openide-util-lookup.jar;C:\tom\tools\visualvm_135\platform\lib\org-openide-util.jar;C:\tom\jdk1.8.0\lib\dt.jar;C:\t
om\jdk1.8.0\lib\tools.jar"
java.property.java.endorsed.dirs="C:\tom\jdk1.8.0\jre\lib\endorsed"
java.property.java.ext.dirs="C:\tom\jdk1.8.0\jre\lib\ext;C:\Windows\Sun\Java\lib\ext"
java.property.java.home="C:\tom\jdk1.8.0\jre"
java.property.java.library.path="C:\tom\jdk1.8.0\jre\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\tom\tools\cygwin\bin;C:\Windows\Microsoft.NET\Framework\v2.0.50727;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\
Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Prog
ram Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engin
e Components\IPT;C:\Program Files (x86)\Windows Live\Shared;C:\Program Files\Java\jdk1.7.0_21\bin;C:\Program Files (x86)\Git\cmd;C:\tom\dev\frameworks\grails"
java.property.java.version="1.8.0-ea"
java.property.java.vm.info="mixed mode"
java.property.java.vm.name="Java HotSpot(TM) 64-Bit Server VM"
java.property.java.vm.specification.name="Java Virtual Machine Specification"
java.property.java.vm.specification.vendor="Oracle Corporation"
java.property.java.vm.specification.version="1.8"
java.property.java.vm.vendor="Oracle Corporation"
java.property.java.vm.version="25.0-b34"
java.rt.vmArgs="-Xms24m -Xmx256m -XX:MaxPermSize=96m -Dnetbeans.accept_license_class=com.sun.tools.visualvm.modules.startup.AcceptLicense -Dsun.jvmstat.perdata.syncWaitMs=10000 -Dsun.java2d.noddraw=true -Dsun.java2d.d3d=false -Djdk.home=C:\tom\jdk1.8.0 -Dnetbeans.home=C:\tom\tools\visualvm_135\platf
orm -Dnetbeans.user=C:\Users\Tom\AppData\Roaming\VisualVM\1.3.5 -Dnetbeans.default_userdir_root=C:\Users\Tom\AppData\Roaming\VisualVM -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=C:\Users\Tom\AppData\Roaming\VisualVM\1.3.5\var\log\heapdump.hprof -Dnetbeans.system_http_proxy=DIRECT -Dsun.awt.keep
WorkingSetOnMinimize=true -Dnetbeans.dirs=C:\tom\tools\visualvm_135\visualvm;C:\tom\tools\visualvm_135\profiler"
java.rt.vmFlags=""
java.threads.daemon=23
java.threads.live=27
java.threads.livePeak=30
java.threads.started=34
sun.ci.compilerThread.0.compiles=215
sun.ci.compilerThread.0.method=""
sun.ci.compilerThread.0.time=68
sun.ci.compilerThread.0.type=1
sun.ci.compilerThread.1.compiles=241
sun.ci.compilerThread.1.method=""
sun.ci.compilerThread.1.time=95
sun.ci.compilerThread.1.type=1
sun.ci.lastFailedMethod="org/openide/filesystems/AbstractFolder find"
sun.ci.lastFailedType=1
sun.ci.lastInvalidatedMethod=""
sun.ci.lastInvalidatedType=0
sun.ci.lastMethod="java/util/regex/Matcher lookingAt"
sun.ci.lastSize=119
sun.ci.lastType=1
sun.ci.nmethodCodeSize=401376
sun.ci.nmethodSize=751504
sun.ci.osrBytes=2253
sun.ci.osrCompiles=9
sun.ci.osrTime=157863
sun.ci.standardBytes=84680
sun.ci.standardCompiles=446
sun.ci.standardTime=5386080
sun.ci.threads=2
sun.ci.totalBailouts=1
sun.ci.totalCompiles=455
sun.ci.totalInvalidates=0
sun.classloader.findClassTime=329464430
sun.classloader.findClasses=738
sun.classloader.parentDelegationTime=47788551
sun.cls.appClassBytes=11176718
sun.cls.appClassLoadCount=6247
sun.cls.appClassLoadTime=2020699
sun.cls.appClassLoadTime.self=910359
sun.cls.classInitTime=1772292
sun.cls.classInitTime.self=1242252
sun.cls.classLinkedTime=1848673
sun.cls.classLinkedTime.self=425601
sun.cls.classVerifyTime=1422356
sun.cls.classVerifyTime.self=657674
sun.cls.defineAppClassTime=1016219
sun.cls.defineAppClassTime.self=189508
sun.cls.defineAppClasses=2650
sun.cls.initializedClasses=4903
sun.cls.isUnsyncloadClassSet=0
sun.cls.jniDefineClassNoLockCalls=9
sun.cls.jvmDefineClassNoLockCalls=768
sun.cls.jvmFindLoadedClassNoLockCalls=6026
sun.cls.linkedClasses=5507
sun.cls.loadInstanceClassFailRate=0
sun.cls.loadedBytes=13736744
sun.cls.lookupSysClassTime=149031
sun.cls.methodBytes=6058072
sun.cls.nonSystemLoaderLockContentionRate=40
sun.cls.parseClassTime=1265956
sun.cls.parseClassTime.self=1117822
sun.cls.sharedClassLoadTime=732
sun.cls.sharedLoadedBytes=0
sun.cls.sharedUnloadedBytes=0
sun.cls.sysClassBytes=11913696
sun.cls.sysClassLoadTime=756878
sun.cls.systemLoaderLockContentionRate=0
sun.cls.time=4856773
sun.cls.unloadedBytes=0
sun.cls.unsafeDefineClassCalls=277
sun.cls.verifiedClasses=5504
sun.gc.cause="No GC"
sun.gc.collector.0.invocations=10
sun.gc.collector.0.lastEntryTime=25262094
sun.gc.collector.0.lastExitTime=25272544
sun.gc.collector.0.name="PSScavenge"
sun.gc.collector.0.time=135990
sun.gc.collector.1.invocations=2
sun.gc.collector.1.lastEntryTime=7019894
sun.gc.collector.1.lastExitTime=7124246
sun.gc.collector.1.name="PSParallelCompact"
sun.gc.collector.1.time=174516
sun.gc.generation.0.capacity=60555264
sun.gc.generation.0.maxCapacity=89456640
sun.gc.generation.0.minCapacity=8388608
sun.gc.generation.0.name="new"
sun.gc.generation.0.space.0.capacity=45613056
sun.gc.generation.0.space.0.initCapacity=0
sun.gc.generation.0.space.0.maxCapacity=89325568
sun.gc.generation.0.space.0.name="eden"
sun.gc.generation.0.space.0.used=3970536
sun.gc.generation.0.space.1.capacity=5570560
sun.gc.generation.0.space.1.initCapacity=0
sun.gc.generation.0.space.1.maxCapacity=29818880
sun.gc.generation.0.space.1.name="s0"
sun.gc.generation.0.space.1.used=1900544
sun.gc.generation.0.space.2.capacity=7471104
sun.gc.generation.0.space.2.initCapacity=0
sun.gc.generation.0.space.2.maxCapacity=29818880
sun.gc.generation.0.space.2.name="s1"
sun.gc.generation.0.space.2.used=0
sun.gc.generation.0.spaces=3
sun.gc.generation.1.capacity=33947648
sun.gc.generation.1.maxCapacity=178978816
sun.gc.generation.1.minCapacity=16777216
sun.gc.generation.1.name="old"
sun.gc.generation.1.space.0.capacity=33947648
sun.gc.generation.1.space.0.initCapacity=16777216
sun.gc.generation.1.space.0.maxCapacity=178978816
sun.gc.generation.1.space.0.name="old"
sun.gc.generation.1.space.0.used=15973264
sun.gc.generation.1.spaces=1
sun.gc.lastCause="Allocation Failure"
sun.gc.metaspace.capacity=41398272
sun.gc.metaspace.maxCapacity=144703488
sun.gc.metaspace.minCapacity=524288
sun.gc.metaspace.used=37832512
sun.gc.policy.avgBaseFootprint=268435456
sun.gc.policy.avgMajorIntervalTime=2147
sun.gc.policy.avgMajorPauseTime=52
sun.gc.policy.avgMinorIntervalTime=3187
sun.gc.policy.avgMinorPauseTime=8
sun.gc.policy.avgOldLive=11277451
sun.gc.policy.avgPretenuredPaddedAvg=0
sun.gc.policy.avgPromotedAvg=1305918
sun.gc.policy.avgPromotedDev=742502
sun.gc.policy.avgPromotedPaddedAvg=3533425
sun.gc.policy.avgSurvivedAvg=3433567
sun.gc.policy.avgSurvivedDev=1330222
sun.gc.policy.avgSurvivedPaddedAvg=7424236
sun.gc.policy.avgYoungLive=1767359
sun.gc.policy.boundaryMoved=0
sun.gc.policy.changeOldGenForMajPauses=0
sun.gc.policy.changeOldGenForMinPauses=0
sun.gc.policy.changeYoungGenForMajPauses=0
sun.gc.policy.changeYoungGenForMinPauses=0
sun.gc.policy.collectors=2
sun.gc.policy.decideAtFullGc=0
sun.gc.policy.decreaseForFootprint=0
sun.gc.policy.decrementTenuringThresholdForGcCost=0
sun.gc.policy.decrementTenuringThresholdForSurvivorLimit=0
sun.gc.policy.desiredSurvivorSize=7471104
sun.gc.policy.edenSize=45613056
sun.gc.policy.freeSpace=59899904
sun.gc.policy.fullFollowsScavenge=0
sun.gc.policy.gcTimeLimitExceeded=0
sun.gc.policy.generations=3
sun.gc.policy.increaseOldGenForThroughput=0
sun.gc.policy.increaseYoungGenForThroughput=5
sun.gc.policy.incrementTenuringThresholdForGcCost=1
sun.gc.policy.liveAtLastFullGc=15973264
sun.gc.policy.liveSpace=281480256
sun.gc.policy.majorCollectionSlope=0
sun.gc.policy.majorGcCost=2
sun.gc.policy.majorPauseOldSlope=7324
sun.gc.policy.majorPauseYoungSlope=969
sun.gc.policy.maxTenuringThreshold=15
sun.gc.policy.minorCollectionSlope=0
sun.gc.policy.minorGcCost=1
sun.gc.policy.minorPauseOldSlope=203
sun.gc.policy.minorPauseTime=6
sun.gc.policy.minorPauseYoungSlope=42
sun.gc.policy.mutatorCost=96
sun.gc.policy.name="ParScav:MSC"
sun.gc.policy.oldCapacity=33947648
sun.gc.policy.oldEdenSize=47120384
sun.gc.policy.oldPromoSize=14286848
sun.gc.policy.promoSize=14286848
sun.gc.policy.promoted=0
sun.gc.policy.scavengeSkipped=0
sun.gc.policy.survived=1900544
sun.gc.policy.survivorOverflowed=0
sun.gc.policy.tenuringThreshold=4
sun.gc.policy.youngCapacity=44564480
sun.gc.tlab.alloc=4480253
sun.gc.tlab.allocThreads=13
sun.gc.tlab.fastWaste=0
sun.gc.tlab.fills=358
sun.gc.tlab.gcWaste=125468
sun.gc.tlab.maxFastWaste=0
sun.gc.tlab.maxFills=156
sun.gc.tlab.maxGcWaste=31122
sun.gc.tlab.maxSlowAlloc=20
sun.gc.tlab.maxSlowWaste=9946
sun.gc.tlab.slowAlloc=47
sun.gc.tlab.slowWaste=11887
sun.os.hrt.frequency=1656464
sun.os.hrt.ticks=79821460
sun.perfdata.majorVersion=2
sun.perfdata.minorVersion=0
sun.perfdata.overflow=0
sun.perfdata.size=65536
sun.perfdata.timestamp=117381
sun.perfdata.used=18320
sun.property.sun.boot.class.path="C:\tom\jdk1.8.0\jre\lib\resources.jar;C:\tom\jdk1.8.0\jre\lib\rt.jar;C:\tom\jdk1.8.0\jre\lib\sunrsasign.jar;C:\tom\jdk1.8.0\jre\lib\jsse.jar;C:\tom\jdk1.8.0\jre\lib\jce.jar;C:\tom\jdk1.8.0\jre\lib\charsets.jar;C:\tom\jdk1.8.0\jre\lib\jfr.jar;C:\tom\jdk1.8.0\jre\clas
ses"
sun.property.sun.boot.library.path="C:\tom\jdk1.8.0\jre\bin"
sun.rt._sync_ContendedLockAttempts=114
sun.rt._sync_Deflations=207
sun.rt._sync_EmptyNotifications=0
sun.rt._sync_FailedSpins=0
sun.rt._sync_FutileWakeups=11
sun.rt._sync_Inflations=223
sun.rt._sync_MonExtant=384
sun.rt._sync_MonInCirculation=0
sun.rt._sync_MonScavenged=0
sun.rt._sync_Notifications=606
sun.rt._sync_Parks=676
sun.rt._sync_PrivateA=0
sun.rt._sync_PrivateB=0
sun.rt._sync_SlowEnter=0
sun.rt._sync_SlowExit=0
sun.rt._sync_SlowNotify=0
sun.rt._sync_SlowNotifyAll=0
sun.rt._sync_SuccessfulSpins=0
sun.rt.applicationTime=59684035
sun.rt.createVmBeginTime=1370993635056
sun.rt.createVmEndTime=1370993635119
sun.rt.internalVersion="Java HotSpot(TM) 64-Bit Server VM (25.0-b34) for windows-amd64 JRE (1.8.0-ea-b92), built on May 30 2013 04:08:11 by "java_re" with MS VC++ 10.0 (VS2010)"
sun.rt.interruptedBeforeIO=0
sun.rt.interruptedDuringIO=0
sun.rt.javaCommand="org/netbeans/Main --branding visualvm --cachedir C:\Users\Tom\AppData\Local\VisualVM\Cache/1.3.5"
sun.rt.jvmCapabilities="1100000000000000000000000000000000000000000000000000000000000000"
sun.rt.jvmVersion=419430434
sun.rt.safepointSyncTime=19615
sun.rt.safepointTime=342511
sun.rt.safepoints=163
sun.rt.threadInterruptSignaled=0
sun.rt.vmInitDoneTime=1370993635100
sun.threads.vmOperationTime=316018
sun.urlClassLoader.readClassBytesTime=90311069
sun.zip.zipFile.openTime=23969141
sun.zip.zipFiles=166

    Gruß Tom
     
    Java rocks! http://www.jugsaar.de
    How to become a good Java Programmer?
    Does IT in Java and .Net
    The only valid measurement of code quality: WTFs / minute
    Blog
    Xing
    Twitter
    Zitieren Zitieren
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