Am I seeing correctly, you have the heap set to about 2GB? I don't like seeing that many Full GCs. The earlier ones are probably due to the server making System.GC calls during startup, which is normal. But after 95.247 the Full GCs seem to be occuring about every 60 seconds, which is probably the distributed garbage collection (DGC) kicking in. You should set the DCG delay to a higher value. See slide Other JVM Options in the presentation I referenced earlier.
Also, what is the full command line you gave to JBoss? Most of the Full GCs are dumping a lot of objects into the tenured generation. Based on this observation, I would guess that either your young generation size is way too small for the heap size you specified, or the tenuring threshold is set too low. Are you possibly using the concurrent garbage collector? References: http://java.sun.com/docs/hotspot/gc1.4.2/ http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3910274#3910274 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3910274 ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ JBoss-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jboss-user
