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Date: Mon, 24 Nov 2014 08:34:11 +0800
From: Wanpeng Li <kernellwp@gmail.com>
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To: Vincent Guittot <vincent.guittot@linaro.org>,
        Peter Zijlstra <peterz@infradead.org>
CC: Ingo Molnar <mingo@kernel.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>,
        LAK <linux-arm-kernel@lists.infradead.org>,
        Preeti U Murthy <preeti@linux.vnet.ibm.com>,
        Morten Rasmussen <Morten.Rasmussen@arm.com>,
        Mike Galbraith <efault@gmx.de>,
        Nicolas Pitre <nicolas.pitre@linaro.org>,
        "linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>,
        Daniel Lezcano <daniel.lezcano@linaro.org>
Subject: Re: [PATCH v2 09/11] sched: test the cpu's capacity in wake affine
References: <1400860385-14555-1-git-send-email-vincent.guittot@linaro.org> <1400860385-14555-10-git-send-email-vincent.guittot@linaro.org> <20140528105855.GR30445@twins.programming.kicks-ass.net> <CAKfTPtAvFEmAmPMQsEN-=ftudQwd0fHOxq4MRs3HDyHYjLPGZQ@mail.gmail.com>
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Hi Vincent,
On 5/28/14, 7:15 PM, Vincent Guittot wrote:
> On 28 May 2014 12:58, Peter Zijlstra <peterz@infradead.org> wrote:
>> On Fri, May 23, 2014 at 05:53:03PM +0200, Vincent Guittot wrote:
[snip]
>> Now I'm only struggling to understand the rationale for this, its got
>> LLC in there somewhere, but I'm failing to comprehend.
> Ah.. i have probably overestimated the fact that wake_affine was only
> done at MC or SMT level but after reading more deeply the glags
> configuration of all  sched_domain level , my assumption is not true.

What's level the wake_affine should happen?

Regards,
Wanpeng Li

> So I need to test sd flag to make sure that their share their cache at
> this level
> --
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