On Mon, Jun 25, 2007 at 12:59:54PM -0400, jamal wrote:
> On Thu, 2007-21-06 at 12:55 -0400, Benjamin LaHaise wrote:
>
> > You should qualify that as 'Old P4 Xeon', as the Core 2 Xeons are leagues
> > better.
>
> The Xeon hardware is not that old - about a year or so (and so is the
> opteron).
> BTW, how could you tell this was old Xeon?
CPUID:
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 2.80GHz
shows that it is a P4 Xeon, which sucks compared to:
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Genuine Intel(R) CPU @ 2.66GHz
which is a Core 2 based Xeon. The tuning required by the P4 is quite
different than the Core 2, and it generally performs more poorly due to
the length of the pipeline and the expense of pipeline flushes.
-ben
--
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