From: Mike Galbraith <bitbucket@online.de>
To: Ethan Zhao <ethan.kernel@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
rjw@sisk.pl, daniel.lezcano@linaro.org, linux-pm@vger.kernel.org,
lenb@kernel.org
Subject: Re: [PATCH V3]hrtimer: Fix a performance regression by disable reprogramming in remove_hrtimer
Date: Mon, 07 Oct 2013 06:41:41 +0200 [thread overview]
Message-ID: <1381120901.9926.11.camel@marge.simpson.net> (raw)
In-Reply-To: <CABawtvMo+NtTv3a3jj=YTg-Om=MzHhVDARdtTA-DtTMzNeNAJA@mail.gmail.com>
On Fri, 2013-10-04 at 20:06 +0800, Ethan Zhao wrote:
> Mike, Peter,
> Seems lots of work has been done these days, studious guys. those
> patches merged in last stable/dev branch (fix performance regression
> caused by extra rtimer programming and rescheduling IPI,confusing
> idle... etc) ? So I could just do a lazy pull for test with my
> environment. I need catch up with other mail loops with my vacation
> again.
Massive timer overhead seems to have crawled off and died while I wasn't
looking. Peter's fix for IPI woes..
tip commit ea811747 sched, idle: Fix the idle polling state logic
..hasn't yet swum upstream.
-Mike
next prev parent reply other threads:[~2013-10-07 4:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20130729115701.GD3008@twins.programming.kicks-ass.net>
[not found] ` <24EECBCC-F655-404F-8946-73CC36095A5F@gmail.com>
[not found] ` <1378362989.18435.2.camel@marge.simpson.net>
[not found] ` <20130905111428.GB23362@gmail.com>
[not found] ` <1378386697.6567.9.camel@marge.simpson.net>
[not found] ` <20130905133750.GA26637@gmail.com>
[not found] ` <1378445942.5434.31.camel@marge.simpson.net>
[not found] ` <20130909122325.GX31370@twins.programming.kicks-ass.net>
[not found] ` <1378730538.5586.30.camel@marge.simpson.net>
[not found] ` <20130909133044.GB31370@twins.programming.kicks-ass.net>
2013-09-09 13:46 ` [PATCH V3]hrtimer: Fix a performance regression by disable reprogramming in remove_hrtimer Peter Zijlstra
2013-09-11 8:56 ` Peter Zijlstra
2013-09-11 10:25 ` Mike Galbraith
2013-10-04 12:06 ` Ethan Zhao
2013-10-07 4:41 ` Mike Galbraith [this message]
2013-10-07 4:57 ` Ethan Zhao
2013-12-12 14:14 ` Ethan Zhao
2013-12-12 14:42 ` Mike Galbraith
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