[CentOS] [OT] Memory Models and Multi/Virtual-Cores -- WAS: 4.0 -> 4.1 update failing

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