> The main advantage of cache coloring normally is that benchmarks
> should get stable results. Without it a benchmark result can vary based on
> random memory allocation patterns.
>
> Just having stable benchmarks may be worth it.
OK, I'll try to hack the scripts to measure standard deviation between runs
as well.
> I suspect the benefit will vary a lot based on the CPU. Your caches may
> have good enough associativity. On other CPUs it may make much more difference.
IIRC, P3's are 4 way associative ... people had been saying that this would
make more of a difference on machines with larger caches, which is why I ran
it ... 2Mb is fairly big for ia32.
M.
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This archive was generated by hypermail 2b29 : Fri Jan 31 2003 - 22:00:19 EST