[Beowulf] Re: Opteron 275 performance

Greg Lindahl lindahl at pathscale.com
Wed Jul 27 15:08:16 EDT 2005


On Wed, Jul 27, 2005 at 08:09:32PM +0200, Vincent Diepeveen wrote:

> Steve,
> Things depend upon what your software is sensitive to.

Vincent,

I know you think everthing is a nail because you like hammers, but if
Steve's problem doesn't thrash the TLB, your entire email is not
relevant. Few programs thrash the TLB. There are some programs
sensitive to memory latency, but you only consider memory latency with
TLB thrashing, which is much less common.

In short: this probably isn't a nail.

-- greg
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