Analyze GC logs for Sun Hotspots, JVM 6

Question

I'm trying to analyze GC behaviour for our application (running in Tomcat, under Sun's Hotspots, JVM 1.6).

So far I've Instructed the JVM to emit GC logs to a separate file using...

-Xloggc:gc.log 
-XX:+PrintGCApplicationStoppedTime 
-XX:+PrintGCApplicationConcurrentTime 
-XX:+PrintGC 
-XX:+PrintGCTimeStamps 
-XX:+PrintGCDetails

...and used jstat to output logs using...

jstat -gc -t 29045 5s > jstat.gc

I am seeing interesting information, but haven't found a tool to help me analyze/visualize these logs. I was pointed to GCViewer by this question, but it only parses a few log lines from gc.log and then crashes with an exception. Is there a better or more up-to-date tool for parsing these specific logs, for the specific JVM I'm using?

Answer 1

I tried to use Visual GC, but it seems to work with an id process (the jvm one ou jstatd one). I can't use it with a jstat.gc, I mean a file and not a stream Is it right?