[jboss-user] [Performance Tuning] - Re: JBoss (web service app) huge memory usage

[xinhua]

in Wiki i found followed statement: 

anonymous wrote : DO NOT USE -d64 (64-bit) if you do not use ABOVE the maximum 32 bit heap space (2-4 GB of heap). Using 64 bit addressing requires MORE memory to do the same amount of work and provides no advantage for applications that do not need this much memory. 

i used -d64 in jvm opt, is that reason?

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