Know of any Java garbage collection log analysis tools? [closed]

Answer 1

I think some people are adding Java probes which don't really parse garbage collection logs as the question states...

I've tried others (gcviewer, gchisto, IBM's) and the best tool I found for analyzing GC logs is HPjmeter

It is mainly for HP-UX JVMs, but it also usually works with Sun JVMs and does a great job.

_{(source: xebia.com)}

Answer 2

The most powerful tool I've found to work with both IBM and Hotspot JVM logs and visualize them is IBM's PMAT: https://www.ibm.com/developerworks/mydeveloperworks/groups/service/html/communityview?communityUuid=22d56091-3a7b-4497-b36e-634b51838e11

I find it both faster and gives more details than the tool in IBM Support Assistant. It is being continually updated, lastly July'12.

However seems to have some problems parsing logs with policy CMS but hopefully that can be fixed.

PrintGCStats is pretty good too, and gives good statistics, but not for visualization over time, that needs some work.

Answer 3

Even better than jconsole is visualvm, which is developed and distributed freely by Sun. It has a GC analyzing plugin called gchisto which might help you.

Edit: Sorry, I didn't see your JDK 1.4.2 requirement. In that case visualvm won't help you, alas.

Answer 4

Try VisualGC from Sun. There are JDK 4 and 5 versions that give you a nice visual of what's going on in the eden, generational, and perm spaces. You need to add a JAR and get a PID and Bob's your uncle.

Answer 5

gcviewer does what you want.

Answer 6

IBM's GC toolkit does exactly what you ask.

https://www.ibm.com/developerworks/java/jdk/tools/gcmv/

I'm not sure if it's compatible with GC logs from Sun's JVM though.