Re: Scheduler fairness problem on 2.6 series (Attn: Nick Piggin and others)

From: spaminos-ker
Date: Tue Aug 17 2004 - 18:09:26 EST


--- Ingo Molnar <mingo@xxxxxxx> wrote:

>
> could you also try the 2.6.8-rc4-mm1 kernel? It has the array-switch
> disabled which _could_ lead to smoother timeslice distribution. It still
> has wakeup bonuses though.
>
> Ingo

Sorry I didn't have the chance to try this test before: I didn't try it on
2.6.8.1-mm1 as I saw that maybe the patch related to the array sawitching was
dropped.

Anyway, I tried the test on 2.6.8-rc4-mm1 and it fails the test with 2 and 20
threads (delays of about 3 seconds for 2 threads, and 5 seconds with 20).

Nicolas

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