PrintTenuringDistribution not showing detail
I'm running WebSphere v6.1 on Solaris 10 with HotSpot JVM 1.5.0_12 in 64bit mode. I experiencing some performance issues and want to observe more details about GC. I turned on -XX:+PrintTenuringDistribution but I don't see the output. I turned on -XX:+PrintCommandLineFlags to be sure all the args are being passed correctly into the JVM and it appears they are.
WebSphere Platform 6.1 [ND 6.1.0.9 cf90722.41]
Host Operating System is SunOS, version 5.10
Java version = 1.5.0_12, Java Compiler = null, Java VM name = Java HotSpot(TM) 64-Bit Server VM
JVM startup args entered into WebSphere Admin Console
-verbose:gc
-XX:+PrintGCDetails
-XX:+PrintGCTimeStamps
-XX:+PrintTenuringDistribution
-XX:MaxPermSize=256M
-XX:+PrintCommandLineFlags
GC output written to logs (no Tenuring detail)
-XX:MaxHeapSize=1073741824 -XX:MaxPermSize=268435456 -XX:+PrintCommandLineFlags -XX:+PrintGC -XX:+PrintGCDetai
ls -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:+TraceClassUnloading -XX:+UseParallelGC
29.722: [GC [PSYoungGen: 132096K->9210K(154112K)] 132096K->9210K(506368K), 0.1059744 secs]
61.723: [GC [PSYoungGen: 141306K->15890K(154112K)] 141306K->15890K(506368K), 0.6926943 secs]
76.778: [GC [PSYoungGen: 147986K->21999K(154112K)] 147986K->24420K(506368K), 0.3699110 secs]
80.266: [GC [PSYoungGen: 154095K->21989K(286208K)] 156516K->27345K(638464K), 1.0474338 secs]
93.078: [GC [PSYoungGen: 286181K->20650K(289280K)] 291537K->26006K(641536K), 0.4828035 secs]
