Generally speaking its the same as the Java Runtime limits. That would be about 1.5GB on all older versions of Mac OS X (Tiger and older).

However, if you're running Leopard on an 64-bit Intel processor then the limit is much higher. A lot higher. It could, in theory, go as high as you have HD space for the virtual memory. You just have to use the -d64 command line flag along with the -Xmx setting. Also, you'll have to tweek the application's startup script to get around the path bug that causes the JVM to think it can't do 64-bit mode when, in fact, it can.

But that's only for 64-bit Intel processors running Leopard. If you're running any PowerPC processors (including the G5) then you're stuck with the 32-bit JVM.

--
Galen Rhodes
[EMAIL PROTECTED]


On Jan 11, 2008, at 1:34 PM, Jeff Schmitz wrote:

Hello,
What is the max memory allocation you can assign to on application instance (assuming of course you have the memory installed) on a previous generation Xserve with Tiger Server/WO5.3? How about the latest xserve with Leopard Server/WO5.4?

Thanks,
Jeff
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