Operation System: Red Hat Linux 4.8
CPU Info: Intel(R) Xeon(R) CPU 5160 @ 3.00GHz X 16
JDK version: "1.5.0_16"
JVM Parameter:
-server
-Xmx1024m
-Xms1024m
-XX:NewSize=256m
-XX:MaxNewSize=256m
-XX:PermSize=128m
-XX:MaxPermSize=128m
-XX:SurvivorRatio=8
-XX:+PrintGCDetails
-XX:+PrintGCTimeStamps
-XX:+UseConcMarkSweepGC
-XX:+UseCMSCompactAtFullCollection
-XX:CMSFullGCsBeforeCompaction=5
-XX:CMSInitiatingOccupancyFraction=60
-XX:CMSMaxAbortablePrecleanTime=5
-XX:+CMSPermGenSweepingEnabled
-XX:+CMSClassUnloadingEnabled
-XX:MaxGCPauseMillis=1500
JVM GC Log:
945188.489: [GC 945188.489: [ParNew: 224543K->14968K(235968K), 0.0506680 secs] 552200K->344514K(1022400K), 0.0507700 secs]
945242.102: [GC 945242.102: [ParNew: 224760K->15374K(235968K), 0.0632410 secs] 554306K->346710K(1022400K), 0.0633450 secs]
945270.397: [GC 945270.402: [ParNew: 225163K->225163K(235968K), 0.0000230 secs]945270.402: [CMS (concurrent mode failure)[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor70]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor58]
[Unloading class …
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