From: Mike Galbraith <efault@gmx.de>
To: Michael Wang <wangyun@linux.vnet.ibm.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Alex Shi <alex.shi@intel.com>, Namhyung Kim <namhyung@kernel.org>,
Paul Turner <pjt@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Nikunj A. Dadhania" <nikunj@linux.vnet.ibm.com>,
Ram Pai <linuxram@us.ibm.com>
Subject: Re: [PATCH] sched: smart wake-affine
Date: Tue, 02 Jul 2013 07:54:46 +0200 [thread overview]
Message-ID: <1372744486.7363.133.camel@marge.simpson.net> (raw)
In-Reply-To: <51D25A80.8090406@linux.vnet.ibm.com>
On Tue, 2013-07-02 at 12:43 +0800, Michael Wang wrote:
> Since RFC:
> Tested again with the latest tip 3.10.0-rc7.
>
> wake-affine stuff is always trying to pull wakee close to waker, by theory,
> this will bring benefit if waker's cpu cached hot data for wakee, or the
> extreme ping-pong case.
>
> And testing show it could benefit hackbench 15% at most.
How much does this still help with Alex's patches integrated?
aside: were I a maintainer, I'd be a little concerned that what this
helps with collides somewhat with the ongoing numa work.
-Mike
next prev parent reply other threads:[~2013-07-02 5:54 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-28 5:05 [RFC PATCH] " Michael Wang
2013-06-03 2:28 ` Michael Wang
2013-06-03 3:09 ` Mike Galbraith
2013-06-03 3:26 ` Michael Wang
2013-06-03 3:53 ` Mike Galbraith
2013-06-03 4:52 ` Michael Wang
2013-06-03 5:22 ` Mike Galbraith
2013-06-03 5:50 ` Michael Wang
2013-06-03 6:05 ` Mike Galbraith
2013-06-03 6:31 ` Michael Wang
2013-06-13 3:09 ` Michael Wang
2013-07-02 4:43 ` [PATCH] " Michael Wang
2013-07-02 5:38 ` Mike Galbraith
2013-07-02 5:50 ` Michael Wang
2013-07-02 5:54 ` Mike Galbraith [this message]
2013-07-02 6:17 ` Michael Wang
2013-07-02 6:29 ` Mike Galbraith
2013-07-02 6:45 ` Michael Wang
2013-07-02 8:52 ` Peter Zijlstra
2013-07-02 9:35 ` Michael Wang
2013-07-02 9:44 ` Michael Wang
2013-07-04 9:13 ` Peter Zijlstra
2013-07-04 9:38 ` Michael Wang
2013-07-04 10:33 ` Mike Galbraith
2013-07-05 2:47 ` Michael Wang
2013-07-05 4:08 ` Mike Galbraith
2013-07-05 4:33 ` Michael Wang
2013-07-05 5:41 ` Mike Galbraith
2013-07-05 6:16 ` Michael Wang
2013-07-07 6:43 ` Mike Galbraith
2013-07-08 2:49 ` Michael Wang
2013-07-08 3:12 ` Mike Galbraith
2013-07-08 8:21 ` Peter Zijlstra
2013-07-08 8:49 ` Mike Galbraith
2013-07-08 9:08 ` Michael Wang
2013-07-08 8:58 ` Michael Wang
2013-07-08 18:59 ` Davidlohr Bueso
2013-07-09 2:30 ` Michael Wang
2013-07-09 2:36 ` Davidlohr Bueso
2013-07-09 2:52 ` Michael Wang
2013-07-15 5:13 ` Michael Wang
2013-07-15 5:57 ` Davidlohr Bueso
2013-07-15 6:01 ` Michael Wang
2013-07-18 2:15 ` Michael Wang
2013-07-03 6:10 ` [PATCH v2] " Michael Wang
2013-07-03 8:50 ` Peter Zijlstra
2013-07-03 9:11 ` Michael Wang
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