Re: [PATCH] page coloring for 2.5.59 kernel, version 1

Martin J. Bligh
2003-01-28T16:40:24Z

> 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.