Thanks for the reply! Does this kind of the GC only run when the memory
usage almost reaches the limit which we allocate (for example, by default,
it is 64 MB)? Sorry that I am not familiar with the GC.
I just know that the JVM would do it for us by itself. Thank you very much!
----- Original Message -----
From: "Richard Mixon" <[EMAIL PROTECTED]>
To: "'Tomcat Users List'" <users@tomcat.apache.org>
Sent: Tuesday, May 30, 2006 1:03 AM
Subject: RE: When does the "MarkSweepCompact" Garbage Collector perform GC?
What makes you think the GC should run? Are you out of memory? The GC will
not run in many situations unless it has a need to.
HTH - Richard
-----Original Message-----
From: Benjamin Chu [mailto:[EMAIL PROTECTED]
Sent: Monday, May 29, 2006 8:25 PM
To: Tomcat Users List
Subject: When does the "MarkSweepCompact" Garbage Collector perform GC?
Hello! Now I am using the jconsole to monitor the heap memory usage of the
tomcat 5.5. I've constructed a testbed to test the performance of the
applications running on the tomcat. However, the jconsole shows that the
"MarkSweepCompact" Garbage Collector never does its job. The only two ways
to make this garbage collector to perform GC are:
<1> I push the button "perform GC" shown on the "Memory tab" of the
jconsole
<2> I insert the code "System.gc()" into the servlets.
I think both of these two ways are not good, and this garbage collector
should perform GC automatically (in my opinion). I just wonder when or
under
which conditions the "MarkSweepCompact" Garbage Collector would perform
GC.
Or actually there is something wrong with my configuration so it doesn't
perform GC?
Thank you very much!
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