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Maximum Ram on 64 bit ubuntu

Matt Elliott
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Joined: Feb 21, 2009
Posts: 14

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I have a 16 gig, 64 bit Ubuntu system and i'm wondering if the Java SE has a maxium heap size?

Peter Johnson
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Joined: May 14, 2008
Posts: 5528

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If you have a 64-bit JVM, the limit is very large (much larger than 16GB!). If you have a 32-bit JVM, the limit is around 2.7GB.

JBoss In Action

I agree. Here's the link: http://ej-technologies/jprofiler - if it wasn't for jprofiler, we would need to run our stuff on 16 servers instead of 3.

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