Re: Java 6 and 64bit max memory

On 32bit JVM's I've never had luck going over 2GB of heap, including
tweaking OS parameters. My current project has a few dual x64 machines
running on XP (not linux unfortunately) . Anyways, our app uses more
memory via the JVM than processor, and the 2GB JVM heap limit is
reached far earlier than the dual x64 processors rise above 50%
capacity.

I noticed Java 6 64bit JVM support for XP x64 - intel. Does anyone know
if for example I have 8GB of memory . I can raise the max heap size to
6GB ? The example assumes nothing else on the machine, just running
jboss / hibernate and uses lots of memory. I'm asking because before I
recommending purchasing more memory, I can use it. I did a lot of
googling but didn't turn up any specifics.