From: Peter Zijlstra <peterz@infradead.org>
To: lkp@lists.01.org
Subject: Re: [x86, paravirt] fd6f48529f: aim7.jobs-per-min -26.1% regression
Date: Thu, 01 Dec 2016 08:21:58 +0100 [thread overview]
Message-ID: <20161201072158.GF3124@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20161130231758.GB18574@yexl-desktop>
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On Thu, Dec 01, 2016 at 07:17:58AM +0800, Ye Xiaolong wrote:
> On 12/01, Peter Zijlstra wrote:
> >On Thu, Dec 01, 2016 at 02:07:29AM +0800, kernel test robot wrote:
> >>
> >> Greeting,
> >>
> >> FYI, we noticed a -26.1% regression of aim7.jobs-per-min due to commit:
> >>
> >>
> >> commit: fd6f48529f4067c6bfbead88d3d7d117d51150f6 ("x86,paravirt: Optimize native pv_lock_ops.vcpu_is_preempted")
> >> https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core
> >>
> >
> >>
> >> 8ba24710fb279053 fd6f48529f4067c6bfbead88d3
> >
> >So that really is against its parent..
> >
> >Does something like so fix it?
>
> I'll queue the test job for below patch and provide the result later.
Much appreciated!
next prev parent reply other threads:[~2016-12-01 7:21 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-30 18:07 [x86, paravirt] fd6f48529f: aim7.jobs-per-min -26.1% regression kernel test robot
2016-12-01 7:04 ` Peter Zijlstra
2016-11-30 23:17 ` Ye Xiaolong
2016-12-01 7:21 ` Peter Zijlstra [this message]
2016-12-01 16:49 ` Ye Xiaolong
2016-12-07 13:17 ` Peter Zijlstra
2016-12-08 1:12 ` Huang, Ying
2016-12-08 8:39 ` Huang, Ying
2016-12-08 11:08 ` Peter Zijlstra
2016-12-09 2:36 ` Huang, Ying
2016-12-09 5:36 ` Peter Zijlstra
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