Re: [REPORT] cfs-v4 vs sd-0.44

[Con Kolivas]

On Saturday 21 April 2007 22:12, Willy Tarreau wrote:
> 2) SD-0.44
>
>    Feels good, but becomes jerky at moderately high loads. I've started
>    64 ocbench with a 250 ms busy loop and 750 ms sleep time. The system
>    always responds correctly but under X, mouse jumps quite a bit and
>    typing in xterm or even text console feels slightly jerky. The CPU is
>    not completely used, and the load varies a lot (see below). However,
>    the load is shared equally between all 64 ocbench, and they do not
>    deviate even after 4000 iterations. X uses less than 1% CPU during
>    those tests.

Found it. I broke SMP balancing again so there is serious scope for 
improvement on SMP hardware. That explains the huge load variations. Expect 
yet another fix soon, which should improve behaviour further :)

-- 
-ck
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