On 29/01/2010 15:13, Caldarale, Charles R wrote:
From: Pid [mailto:[email protected]]
Subject: Re: tomcat memory usage
The overall size of the heap is controlled by 3 different groups of
settings, not just the one you referred to:
-Xms512M -Xmx512M
-XX:NewSize=32m -XX:MaxNewSize=4096m
-XX:PermSize=64m -XX:MaxPermSize=128m
The overall amount of memory used is the sum of current values of each
these groups, plus non-heap memory.
(How'd I do?)
Not well. The -Xmx and -Xms values include the NewSize; it is not a separate
portion of the memory space as PermGen is.
Dagnamit. So the MaxNewSize, despite often being seen at high values in
jmap outputs, is actually only applicable if the 'mx' allows it?
p
- Chuck
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