Re: [patch 0/2] fix perf. bug in wake-up load balancing for aim7 and db workload

From: Ingo Molnar
Date: Tue Feb 14 2006 - 02:34:39 EST

* Andrew Morton <akpm@xxxxxxxx> wrote:

> > We should back out the above commit and add a sysctl variable to control the
> > behavior of load balancing in wake up path, so user can dynamically select
> > a mode that best fit for the workload environment. And kernel can achieve
> > best performance in two extreme ends of incompatible workload environments.
> Well I don't see any benchmark numbers in the original patch. Just an
> assertion that it "should" help something.
> I'm more inclined to revert it and not add the sysctl (ugh) until we
> have a good reason to do so.

yeah, we should do the revert:

Acked-by: Ingo Molnar <mingo@xxxxxxx>

but i'm quite against a sysctl knob. Especially not for 2.6.16.

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