help with long par new times

[Jon Masamitsu]

Your system time is rather high on this GC.  Check the other long GC's 
to see
if there is similar high system times.

8706.691: [GC 8706.691: [ParNew: 921599K->95151K(921600K), 18.2093573 
secs] 2598
628K->1818996K(4091904K), 18.2099612 secs] [Times: user=5.11 sys=33.09, 
real=18.
21 secs]


Something other than GC is likely contributing to these long pauses.



On 6/3/2011 3:17 PM, Erwin wrote:
>> Hello,
>>
>> We performed load testing in our environment today and
>> there were 3 high par new times. There were no failure in
>> promotions and no full gc, the par new just took long on 7
>> occasions. The long times were: 4.1402018, 19.4847804,
>> 18.2093573, 11.7687385, 3.8394909, 3.1041563 and 2.1444040.
>> The load test was ran for about 3 hours.
>> Any help would be appreciated. I'm attaching the
>> native_stdout.log. I'm also showing the jvm args below.
>> M5000 with 16GB physical memory
>> Min heap - 4096
>> Mam heap - 6016
>> -server
>> -Xmn1000m
>> -XX:PermSize=512m
>> -XX:+UseConcMarkSweepGC
>> -XX:+HeapDumpOnOutOfMemoryError
>> -DUseSunHttpHandler=true
>> -Djavax.xml.soap.MessageFactory=weblogic.xml.saaj.MessageFactoryImpl
>> -Doracle.jdbc.V8Compatible=true
>> -XX:CMSInitiatingOccupancyFraction=70
>> -XX:+CMSClassUnloadingEnabled
>> -verbose:gc
>> -XX:+PrintGCTimeStamps
>> -XX:+PrintGCDetails
>> -XX:-TraceClassUnloading
>> -XX:+PrintHeapAtGC
>> -XX:MaxPermSize=694m
>> -XX:+DisableExplicitGC
>> -XX:+CMSParallelRemarkEnabled
>>
>> Any help would be appreciated.
>> Thanks,
>> Erwin
>>
>>
>> _______________________________________________
>> hotspot-gc-use mailing list
>> hotspot-gc-use at openjdk.java.net
>> http://mail.openjdk.java.net/mailman/listinfo/hotspot-gc-use
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