I'm running JBoss 4.0.1sp1 on Fedora Core4, with JDK 1.5.0_05.

I have a low traffic web app deployed to the server that gets approx 6 page 
hits an hour. The JVM is configured with -Xms128m -Xmx128m.

Using JConsole I see the eden VM space increase by 10Mb each minute and then 
get collected back down to near 0. This is a regular pattern each minute. The 
survivor space is next to 0 and tenured gen is also constant at around 34Mb.

Even during periods of no activity on my server, I am stil seeing this 
contunuous saw-tooth pattern of memory use in the eden space - it goes from 0 
to 10Mb in 1 min, and then is collected back down to 0 again.

Is this normal behavior?

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