On Mon, 26 Feb 2007 at 7:55am, Johnny Hughes wrote
On Mon, 2007-02-26 at 08:44 -0500, Joshua Baker-LePain wrote:
On Mon, 26 Feb 2007 at 7:40am, Johnny Hughes wrote
OK ... is it a:
Quad Processor (4 physical processors) Dual Core Xeon ...
or
Dual Processor (2 physical processors) Quad Core Xeon ...
I have never heard if a "Quad Core" processor in production ... it might
be there, I could have missed it.
E.g.:
http://www.siliconmechanics.com/i8665/Quad-Core-Xeon.php
In the CPU pull down menu you'll see both dual core and quad core Xeons.
Someone what to send me some of those so I can test kernel modules on
them :P
Heh. Be careful what you wish for. Keep in mind those 8 cores *still*
share a single memory controller. In my testing, my Xeon 5160s are a
*lot* better than the old P4 based Xeons at memory intensive code (i.e.
they show contention less readily). But I do have some code that brings
them to their knees when run across all 4 cores in a system (whereas dual
core Opterons continue merrily along). Running said code across 8 cores
with one path to memory would be painful.
Things ought to get *real* interesting when AMD's quad cores come out...
--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
