Re: [tip:sched/core] sched: Fix and optimise calculation of theweight-inverse

From: Ingo Molnar
Date: Mon May 16 2011 - 07:16:35 EST



* tip-bot for Stephan Baerwolf <stephan.baerwolf@xxxxxxxxxxxxx> wrote:

> Commit-ID: db670dac49b5423b39b5e523d28fe32045d71b10
> Gitweb: http://git.kernel.org/tip/db670dac49b5423b39b5e523d28fe32045d71b10
> Author: Stephan Baerwolf <stephan.baerwolf@xxxxxxxxxxxxx>
> AuthorDate: Wed, 11 May 2011 18:03:29 +0200
> Committer: Ingo Molnar <mingo@xxxxxxx>
> CommitDate: Mon, 16 May 2011 11:01:18 +0200

Just want to highlight this aspect of Stephan's scheduler fix for the lkml
discussion:

> [ This could explain some aritmetical issues for small shares but nothing
> concrete has been reported yet so we are not confident enough to queue
> this up in sched/urgent and for -stable backport. But if anyone finds
> this commit and sees it to fix some badness then we can certainly
> change our mind! ]
> Signed-off-by: Ingo Molnar <mingo@xxxxxxx>

So this could be a -stable candidate because it's a fix and it's simple, except
that at the moment we have no reason to believe that this is a regression or a
serious bug.

Thanks,

Ingo
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