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Date: Tue, 14 Feb 2012 18:32:13 -0800
Message-ID: <CABeCy1aC3-nFZBOPufsqqAPki7s-yfDw3m5uMCoCkTNQiE3k0w@mail.gmail.com>
Subject: Re: [RFC] Extend mwait idle to optimize away IPIs when possible
From: Venki Pallipadi <venki@google.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Yong Zhang <yong.zhang0@gmail.com>, Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
        Suresh Siddha <suresh.b.siddha@intel.com>,
        Aaron Durbin <adurbin@google.com>, Paul Turner <pjt@google.com>,
        linux-kernel@vger.kernel.org
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On Tue, Feb 14, 2012 at 5:52 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> On Mon, 2012-02-13 at 13:34 +0800, Yong Zhang wrote:
>> Yeah, most of the things could be shared. Such as the added logic when
>> return from idle and the hooks into ttwu_queue_remote() and
>> generic_exec_single().
>>
>
> The thing is, those last two should not have hooks. Nor am I convinced
> anything outside of the arch idle loop should have any.
>

OK. Will put stuff in arch and respin soon..

-Venki
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