[ http://jira.jboss.com/jira/browse/JBAS-1274?page=history ] Adrian Brock closed JBAS-1274: ------------------------------
Resolution: Rejected > Excessive Use Of Memory under no-load conditions after install with -All > option > ------------------------------------------------------------------------------- > > Key: JBAS-1274 > URL: http://jira.jboss.com/jira/browse/JBAS-1274 > Project: JBoss Application Server > Type: Bug > Versions: JBossAS-4.0.1 Final > Environment: Jboss 4.0.1 Final WindowsXP JDK 1.5.0_01 > Reporter: aanecito > Assignee: Scott M Stark > Priority: Minor > > > I was up late last night looking at JBoss 4.0.1 Final. I was using 1.5.0_01 > JDK from Sun and noticed something interesting. I used the VisualGC tool to > dynamically look at the heap and it has a cool multi-window GUI. One of the > windows shows the New-Old heap space. What was interesting was the behavior I > call motorboating where the New generation heap gets filled up and does a > minor GC and puts objects into the survivor spaces. The interesting thing was > I had the new generation size around 30MB and it filled it very quickly after > starting it up and nothing hitting the server in the ?All configuration. On > the window it looked like a sawtooth waveform and it looked as if the objects > were all GC?ed but I was wondering why the server was creating so many > objects so quickly using up valuable resources with zero load. > I also noticed a system.gc every now and then which makes me believe someone > should do a search through all the source to eleminate this call. It it not > good to overide the JVM for GC's. I also was getting invalid allocations > indicated in the VisualGC tool. All this just after installing JBoss 4.0.1 > Final out of the box so to speak. > I also noticed this same behavior in JBoss 3.5.2 so I suspect it may be a > generic issue with Jboss product. Please let me know what I can do about it. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - If you want more information on JIRA, or have a bug to report see: http://www.atlassian.com/software/jira ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ JBoss-Development mailing list JBoss-Development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-development