Re: -mm seems significanty slower than mainline on kernbench

[Martin Bligh]

> Thanks and looks like the results are in from 2.6.14-rc2-mm1 with the patch 
> backed out.
>
> Drumroll....
>
> http://test.kernel.org/perf/kernbench.moe.png
>
> The performance goes back to a range similar to 2.6.14-rc1-mm1 (see 
> 2.6.14-rc2-mm1 + 20328 in blue). Unfortunately this does implicate this 
> patch. Can we put it back into -mm only and allow Peter's tweaks/fixes to go 
> on top and have it tested some more before going upstream?

Hmm. Looks like we didn't get this as fixed up as I thought. Moe seems 
to be fixed (16x NUMA-Q), but elm3b132 is not (it's 4x, flat SMP ia32).
Look at the latest graphs ....

Is it possible it only got fixed for NUMA boxes?

M.

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