From: Mike Galbraith <efault@gmx.de>
To: Lin Ming <ming.m.lin@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
lkml <linux-kernel@vger.kernel.org>,
"Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Subject: Re: [RFC PATCH] sched: Pass affine target cpu into wake_affine
Date: Tue, 05 Jan 2010 04:44:18 +0100 [thread overview]
Message-ID: <1262663058.5748.32.camel@marge.simson.net> (raw)
In-Reply-To: <1262659686.22471.121.camel@minggr.sh.intel.com>
On Tue, 2010-01-05 at 10:48 +0800, Lin Ming wrote:
> On Mon, 2010-01-04 at 17:03 +0800, Lin Ming wrote:
> > commit a03ecf08d7bbdd979d81163ea13d194fe21ad339
> > Author: Lin Ming <ming.m.lin@intel.com>
> > Date: Mon Jan 4 14:14:50 2010 +0800
> >
> > sched: Pass affine target cpu into wake_affine
> >
> > Since commit a1f84a3(sched: Check for an idle shared cache in select_task_rq_fair()),
> > the affine target maybe adjusted to any idle cpu in cache sharing domains
> > instead of current cpu.
> > But wake_affine still use current cpu to calculate load which is wrong.
> >
> > This patch passes affine cpu into wake_affine.
> >
> > Signed-off-by: Lin Ming <ming.m.lin@intel.com>
>
> Mike,
>
> Any comment of this patch?
The patch definitely looks like the right thing to do, but when I tried
this, it didn't work out well. Since I can't seem to recall precise
details, I'll let my box either remind me or give it's ack.
-Mike
next prev parent reply other threads:[~2010-01-05 3:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-04 9:03 Lin Ming
2010-01-04 9:25 ` Peter Zijlstra
2010-01-04 9:12 ` Lin Ming
2010-01-04 9:32 ` Peter Zijlstra
2010-01-04 10:59 ` Mike Galbraith
2010-01-04 11:07 ` Lin Ming
2010-01-05 2:48 ` Lin Ming
2010-01-05 3:44 ` Mike Galbraith [this message]
2010-01-05 6:43 ` Mike Galbraith
2010-01-05 11:49 ` Mike Galbraith
2010-01-07 8:45 ` Lin Ming
2010-01-07 9:15 ` Peter Zijlstra
2010-01-07 9:33 ` Mike Galbraith
2010-01-07 13:14 ` Mike Galbraith
2010-01-08 2:38 ` Lin Ming
2010-01-08 3:34 ` Mike Galbraith
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1262663058.5748.32.camel@marge.simson.net \
--to=efault@gmx.de \
--cc=linux-kernel@vger.kernel.org \
--cc=ming.m.lin@intel.com \
--cc=peterz@infradead.org \
--cc=yanmin_zhang@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome