Pentium IV Xeon memory bandwidth. Any experience?

Greg Lindahl lindahl at conservativecomputer.com
Tue Jun 26 11:23:33 EDT 2001


On Tue, Jun 26, 2001 at 11:49:48AM +0200, Thomas Guignon wrote:

> From my opinion the STREAM bencmark reports more the compiler ability
> to generate eficient code than the hardware performance.

It measures both. If your compiler isn't generating efficient code,
then maybe you should use a better compiler, because most people don't
write their applications in assembly.

> I think it's dificult to conclude something on memory bandwidth with a gcc
> compiled STREAM.

This is correct. There are a couple of compilers for x86 which use SSE
prefetch instructions that you could use.

-- g


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