From: Alex Shi <alex.shi@linaro.org>
To: Mike Galbraith <efault@gmx.de>
Cc: mingo@redhat.com, peterz@infradead.org, morten.rasmussen@arm.com,
vincent.guittot@linaro.org, daniel.lezcano@linaro.org,
wangyun@linux.vnet.ibm.com, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] sched: select_idle_sibling macro optimize
Date: Fri, 17 Jan 2014 13:40:43 +0800 [thread overview]
Message-ID: <52D8C25B.6080409@linaro.org> (raw)
In-Reply-To: <1389929776.5409.27.camel@marge.simpson.net>
On 01/17/2014 11:36 AM, Mike Galbraith wrote:
>>>>> +
>>>>> > >>> + /* skip single group domain */
>>>>> > >>> + if (sg == sg->next)
>>>>> > >>> + continue;
>>> > >
>>> > > When is that gonna happen?
>> >
>> > I had seen this in a Intel platform, you may have both CPU domain and MC
>> > domain layer, because the domain flag is different, then they can not be
>> > merged. and then the CPU domain just has one group.
> But sd starts at MC.
That's true. Sorry for noise.
--
Thanks
Alex
prev parent reply other threads:[~2014-01-17 5:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-15 14:23 Alex Shi
2014-01-16 13:13 ` Alex Shi
2014-01-16 13:52 ` Mike Galbraith
2014-01-17 2:14 ` Alex Shi
2014-01-17 3:15 ` Michael wang
2014-01-17 3:36 ` Mike Galbraith
2014-01-17 5:40 ` Alex Shi [this message]
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