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SubjectRe: 2.4.17 absurd number of context switches
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> > The scheduler is _good_ at the three process case. Run some straces it looks
> > more like postgres is doing wacky yield based locks.
>
> The scheduler that Linus merged in 2.5.2-pre3 will solve the problem.

Looking at the postgres traces here it wont make any difference at all. Not
one iota. If I am reading it right I have processes each going
yield, yield, yield... so the kernel does just that (and indeed posix
semantics require that behaviour).

Alan
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