For some reason Linux always calls 64 bit OSes 'AMD' - in fact, the sun
64 bit AMD version works fine on modern 64 bit Intel CPUs. The confusion
comes because there was an older 64 bit design from Intel called the
'Itanium' which was intended for servers and had a completely different
instruction set. The Xeon family and the E64 family are all compatible
with the 'AMD' 64 bit JVM
You say DELL 2590 - do you mean DELL 2950? The 2950 is takes Intel Xeon
processors which will work with the so-called 'AMD' JVM.
Hope that helps
Regards
Alan Chaney
Dave wrote:
I installed Linux FC6 64-bit on the machine DELL 2590(I think it is INTEL type
CPU). But JVM 64-bit is only available for AMD and SPARC. Is the SUN not
support INTEL?
Thanks, Dave
David Delbecq <[EMAIL PROTECTED]> wrote:
En l'instant précis du 25/02/08 13:51, Dave s'exprimait en ces termes:
Our Linux(FC) machine has 8G physical memory and 12G swap size. I am using JDK
1.5. I tried to set the Java option -Xmx to set max heap size for best
performance, the allowed max heap size is 2048M . Does that mean that the JVM
can not use all the physical memory (8G) ? Thanks.
Dave
---------------------------------
Never miss a thing. Make Yahoo your homepage.
The maximum memory the JVM can use depends on the maximum size of
continuous memory segment the OS you run on allows you to reserve.
On 32 bits linux, it's about 2G (that is 4G minus memory area reserved
for kernel, minus memory area used by libraries minus other thingies jvm
might use). To get more you will need a 64bits JVM + a 64 bits OS. Note
it's a limitation of hardware architecture and OS more than a limitation
of JVM.
PS: if you plan to swap-out 12G of datas, i hope your disks are fast :)
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