Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel

From	Mike Galbraith <umgwanakikbuti@gmail.com>
Newsgroups	linux.kernel
Subject	Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel
Date	2015-12-18 03:50 +0100
Message-ID	<qGThf-857-1@gated-at.bofh.it> (permalink)
References	(7 earlier) <qGjQu-1SH-17@gated-at.bofh.it> <qGkMy-2rE-21@gated-at.bofh.it> <qGnKp-4Bl-7@gated-at.bofh.it> <qGIYy-1kc-19@gated-at.bofh.it> <qGIYy-1kc-17@gated-at.bofh.it>
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On Thu, 2015-12-17 at 16:43 +0100, Jirka Hladky wrote:
> Hi Peter,
> 
> I'm not sure how to do the bisecting and avoid landing at:
> 
> [2a595721a1fa6b684c1c818f379bef834ac3d65e] sched/numa: Convert
> sched_numa_balancing to a static_branch
> 
> I have redone the bisecting but I have landed again at this commit.
> Can you please help me to identify the commit which has fixed for
> 2a595721a1fa6b684c1c818f379bef834ac3d65e ? I think I will need to
> start the bisecting from there.

One way...

Put b52da86e0ad58f096710977fcda856fd84da9233 in quilt queue, try to
quilt push before each build, ignoring whether it applies or not.  If
it does apply, quilt pop before saying git bisect [good/bad] lest git
refuse to play due to you mucking about with its source its source.

	-Mike

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Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Mike Galbraith <umgwanakikbuti@gmail.com> - 2015-12-12 08:10 +0100
  Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Jirka Hladky <jhladky@redhat.com> - 2015-12-12 15:20 +0100
    Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Mike Galbraith <umgwanakikbuti@gmail.com> - 2015-12-12 15:40 +0100
      Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Jirka Hladky <jhladky@redhat.com> - 2015-12-15 01:10 +0100
      Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Jirka Hladky <jhladky@redhat.com> - 2015-12-15 01:10 +0100
      Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Rik van Riel <riel@redhat.com> - 2015-12-15 03:20 +0100
        Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Jirka Hladky <jhladky@redhat.com> - 2015-12-15 09:50 +0100
          Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Jirka Hladky <jhladky@redhat.com> - 2015-12-16 14:00 +0100
            Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Peter Zijlstra <peterz@infradead.org> - 2015-12-16 15:00 +0100
              Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Jirka Hladky <jhladky@redhat.com> - 2015-12-16 18:10 +0100
                Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Jirka Hladky <jhladky@redhat.com> - 2015-12-17 16:50 +0100
                Re: sched : performance regression 24% between 4.4rc4 and 4.3 kernel Mike Galbraith <umgwanakikbuti@gmail.com> - 2015-12-18 03:50 +0100

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