[jboss-user] [Performance Tuning] - max heap size on 64 bit red hat linux 5

Zippy Zeppoli [https://community.jboss.org/people/zippyzeppoli] created the discussion "max heap size on 64 bit red hat linux 5" To view the discussion, visit: https://community.jboss.org/message/744378#744378 -------------------------------------------------------------- Hi everyone, I searched the Red Hat and Oracle JVM docs (sun jvm docs gone) and I wasn't able to find the answer to my question. I am wondering what the real max heap size is on RHEL 5 64 bit for JBoss AS 5? My understanding is that on a 64 bit process the memory references use a good deal of the heap space. For example, if I have a 10G max heap, it's not really going to use all of that space right? About what would it be? And whats the max limit on a 64 bit system? Thanks in advance. Z -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/744378#744378] Start a new discussion in Performance Tuning at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]