Athlon memory speed asymmetry

Eray Ozkural exa at
Wed Feb 26 03:30:56 PST 2003

On Tuesday 25 February 2003 18:27, David Mathog wrote:
> I'm observing an odd asymmetry in memory utilization on
> Athlons.  Trivial array operations (read then write)
> are up to 30% faster going up through the array then
> down through the array.

Maybe it's a simple matter of AMD taking upwards memory iteration a common 
operation and optimizing the architecture for it... They'd do anything to 
improve those application benchmarks :)


Eray Ozkural (exa) <erayo at>
Comp. Sci. Dept., Bilkent University, Ankara
www:  Malfunction:
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