I completed a test two days ago and generated class histograms. vmstat shows that I have only 131MB free out of 8GB. Letting the server sit idle for over 48 hours and forcing GCs, only a few classes remain. The class with the most instances "hanging around" is java.util.concurrent.ConcurrentLinkedQueue$Node -- 1573472 instances. GC looks excellent in VisualGC, so I'm suspecting a leak in the native code for glassfish or even java. Anybody already heard of problems in this area? I'll file a bug if not. I've attached a file with diffs for my class histogram output. short snip here:
SIZE(bytes) Counts
53737024 java.util.concurrent.ConcurrentLinkedQueue$Node Before: 105810 After: 1679282 Diff: 1573472
[Message sent by forum member 'rpetruzzelli' (rpetruzzelli)]
http://forums.java.net/jive/thread.jspa?messageID=323422