[CentOS] [OT] Memory Models and Multi/Virtual-Cores -- WAS: 4.0 -> 4.1 update failing
Les Mikesell
lesmikesell at gmail.com
Sat Jun 25 19:53:13 UTC 2005
On Sat, 2005-06-25 at 12:49, Peter Arremann wrote:
> >
> > Some real-world benchmark numbers would make the case more
> > convincing. Does anyone have some? I'm particularly interested
> > in anything with AMD vs. IBM's 64-bit xeon boxes.
> The talk we had wasn't really about 64bit...
>
> There are a few benchmarks out there comparing the two - but none I've seen
> actually test 64bit linux tuned for Opteron/Xeon (instead of the stock RHEL
> kernels, see below) with large memory (>4GB) running heavy IO. That's where
> you'd see the biggest issue with intels implementation because of the lack of
> IOMMU.
Most of the situations where I would use them involve some disk update
activity but much more reading, so what really interests me is how well
a huge amount of memory works as a disk buffer to avoid doing heavy
physical I/O.
--
Les Mikesell
lesmikesell at gmail.com
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