Re: [PATCH] [PERFORMANCE RESULTS] priority preemption in Linux

From: Ingo Molnar (mingo@elte.hu)
Date: Tue Oct 15 2002 - 12:27:37 EST


On Tue, 15 Oct 2002, Bill Hartner wrote:

> kernel preemption conforming percent
> threshold connections improvement
> ====== =========== =========== ===========
>
> 2.5.33 0 (default) 2906 baseline
> 2.5.33 40 2990 2.9 %
>
> Table 3 shows that reducing priority preemption improved the
> number of conforming connections by 2.9 %.

actually, the more interesting metric is the ops/sec value - how did that
change? Conforming connections is a cutoff value and the real improvement
might be bigger than that.

        Ingo

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