Messages in this thread | | | Subject | Re: [PATCH] page coloring for 2.5.59 kernel, version 1 | From | Andi Kleen <> | Date | 28 Jan 2003 17:37:25 +0100 |
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"Martin J. Bligh" <mbligh@aracnet.com> writes:
> > I think this one really needs to be done with the userspace cache > > thrashing microbenchmarks. > > If a benefit cannot be show on some sort of semi-realistic workload, > it's probably not worth it, IMHO.
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.
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.
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