Re: [git] CFS-devel, group scheduler, fixes
- From: Willy Tarreau <w@xxxxxx>
- Date: Fri, 21 Sep 2007 05:11:39 +0200
On Fri, Sep 21, 2007 at 04:40:55AM +0200, Mike Galbraith wrote:
On Thu, 2007-09-20 at 21:48 +0200, Willy Tarreau wrote:
I don't know if this is relevant, but 4294966399 in nr_uninterruptible
for cpu#0 equals -897, exactly the negation of cpu1.nr_uninterruptible.
I don't know if this rings a bell for someone or if it's a completely
useless comment, but just in case...
A task can block on one cpu, and wake up on another, which isn't
tracked, hence the fishy looking numbers. The true nr_uninterruptible
is the sum of all.
OK, thanks Mike for this clarification.
Willy
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- References:
- Re: [git] CFS-devel, group scheduler, fixes
- From: Ingo Molnar
- Re: [git] CFS-devel, group scheduler, fixes
- From: Tong Li
- Re: [git] CFS-devel, group scheduler, fixes
- From: Mike Galbraith
- Re: [git] CFS-devel, group scheduler, fixes
- From: Mike Galbraith
- Re: [git] CFS-devel, group scheduler, fixes
- From: Mike Galbraith
- Re: [git] CFS-devel, group scheduler, fixes
- From: Tong Li
- Re: [git] CFS-devel, group scheduler, fixes
- From: Mike Galbraith
- Re: [git] CFS-devel, group scheduler, fixes
- From: Mike Galbraith
- Re: [git] CFS-devel, group scheduler, fixes
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- Re: [git] CFS-devel, group scheduler, fixes
- From: Mike Galbraith
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