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From "Caldarale, Charles R" <Chuck.Caldar...@unisys.com>
Subject RE: tomcat CPU utilization pegged...total CPU only 50%
Date Fri, 04 Feb 2005 05:13:06 GMT
> From: Kevin Williams [mailto:KWilliams@centerlogic.com]
> Subject: RE: tomcat CPU utilization pegged...total CPU only 50%
> 
> I've done some more digging and am still stumped.  I don't 
> think it's a garbage collector.

Turn on -verbose:gc to make sure.

> The machine runs on 2 Gigs of Ram.  I set the -Xmx
> and -Xms value to 1024m and the younger generation values as
> -XX:NewSize=386m -XX:MaxNewSize=386m -XX:SurvivorRatio=4.

You may need to increase the size of the perm gen, since this is used to hold instances of
java.lang.Class (among other things), and heavy use can frequently fill up the default maximum.

 - Chuck


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