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From "Stephen Nelson-Smith" <>
Subject Making the most of 8G of RAM
Date Mon, 17 Mar 2008 22:30:33 GMT

I have a new machine with 8G of RAM, running a 32 bit 2.6 kernel
(CentOS 5).  It is running an application inside 4.1.37 with Java

Given that we only have a 32 bit address space, is it fair to say that
I can't use more than 2G of RAM for my Java virtual machine?

I tried to prove this with:

export CATALINA_OPTS="-server -Xms2512m -Xmx2512m"

but so far I've not seen memory usage go over 1G.

What's the best way to make to most of the RAM?


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