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

Martin J. Bligh
2003-01-28T06:49:42Z

> This is yet another holding action, a port of my page coloring patch
> to the 2.5 kernel. This is a minimal port (x86 only) intended to get
> some testing done; once again the algorithm used is the same as in
> previous patches. There are several cleanups and removed 2.4-isms that
> make the code somewhat more compact, though.
>
> I'll be experimenting with other coloring schemes later this week.
>
> www.boo.net/~jasonp/page_color-2.5.59-20030127.patch
>
> Feedback of any sort welcome.

I took a 16-way NUMA-Q (700MHz P3 Xeon's w/2MB L2 cache) and ran some
cpu-intensive benchmarks (kernel compile on warm cache with -j32 and
-j 256, SDET 1 - 128 users, and numaschedbench with 1 to 64 processes,
which is a memory thrasher to test node affinity of memory operations),
and compared to virgin 2.5.59 - no measurable difference on any test.
Sorry,

M.