Looks like the number reported by the console is the allocated space, but not the used space. If I keep adding objects, I eventually get the OutOfMemory error.
Jason > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of Jason Williams > Sent: Thursday, March 24, 2005 11:52 AM > To: Research Triangle Java User's Group mailing list. > Subject: RE: [Juglist] jboss app memory usage > > > Ok. I think I found it in the jmx-console. I was able to view the JVM > specs for the running application and the specs showed the current and > maximum heap size. Good so far. > > So, now I have another question. My application uses Lucene indexes and > they are fairly large. I'm trying to determine the memory requirements to > open up and search these indexes. When each one is opened, the > app creates > a class that holds the IndexSearcher class and some associated > files. As I > added each one I saw the heap size grow accordingly. Knowing that the > default heap size is 64MB, as I approached that limit I fully expected to > start getting OutOfMemory errors. > > However, this did not happen. The heap size reported by the jmx-console > caps out at 66387968 (darn close to 64MB). And as I keep adding new > indexes, the heap size remains at 64MB, I get no OutOfMemory errors and my > application is responding correctly. > > I'm fairly certain that the other indexes have not been garbage collected > and therefore should still be on the heap. So, what gives here? Is there > some sort of swap space for the heap? Is the number reported by the > jmx-console the max, but the actual memory being used is less? > > Any thoughts? > > Thanks, > > Jason > > > > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > > Behalf Of Jason Williams > > Sent: Thursday, March 24, 2005 9:03 AM > > To: Triangle JUG > > Subject: [Juglist] jboss app memory usage > > > > > > Hi guys, > > > > How can I determine how much memory an application running in JBoss is > > using? > > > > Thanks, > > > > Jason Williams > > Web Commerce Group > > Private-label Internet Applications for Business > > > > Home of Arkdom Managed Services > > www.arkdom.com > > > > > > > > _______________________________________________ > > Juglist mailing list > > [email protected] > > http://trijug.org/mailman/listinfo/juglist_trijug.org > > > > _______________________________________________ > Juglist mailing list > [email protected] > http://trijug.org/mailman/listinfo/juglist_trijug.org _______________________________________________ Juglist mailing list [email protected] http://trijug.org/mailman/listinfo/juglist_trijug.org
