Hi, Windows needs additional space for other things (including possibly idle thread cleanup) and swaps your process into a paging area temporarily. It's fairly standard practice, and as you noted results in no errors, so don't worry about it.
Yoav Shapira Millennium Research Informatics >-----Original Message----- >From: Futchi [mailto:[EMAIL PROTECTED] >Sent: Wednesday, July 28, 2004 12:11 PM >To: Tomcat Users List >Subject: JVM memory size changing dramatically > >Hi all, > I am running tomcat 5 on Win2003 server, my single app. has >several threads running in the background (threads loading and writing >data, detecting URL connections). > >Tomcat starting-up with 80 up 90 MB memory size as Win2003 shows in the >Tasks Manager, it keeps running stable and getting up and down between >80 and 93 MB memory size. After several hours, memory size gets down to >5 MB very fast, and then start goes up to 90 MB also fast. This change >happening in about 2-3 minutes only, then it becomes stable again >jumping between 80-93 MB memory size. > >While this happening Tomcat is up and running, also my App. is up and >running. I do not have any memory error messages. > > >I doubt it is the GC, Anybody can explain that?!!! > > >My JAVA_OPTS as follows > > >JAVA_OPTS=-server -Xms256m -Xmx768m -XX:NewSize=64m -XX:MaxNewSize=64m >-XX:SurvivorRatio=8 -XX:MaxTenuringThreshold=5 >-XX:TargetSurvivorRatio=75 -XX:PermSize=32m -XX:MaxPermSize=32m -Xss128k >-XX:+DisableExplicitGC > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
