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Date: Tue, 25 Feb 2014 19:02:13 -0800
From: Andy Lutomirski <luto@amacapital.net>
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To: Thomas Gleixner <tglx@linutronix.de>, LKML <linux-kernel@vger.kernel.org>
CC: John Stultz <john.stultz@linaro.org>,
        Peter Zijlstra <peterz@infradead.org>,
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        Alexey Perevalov <a.perevalov@samsung.com>, kyungmin.park@samsung.com,
        cw00.choi@samsung.com
Subject: Re: [RFC patch 0/5] hrtimers: Add deferrable mode
References: <20140221173936.583477951@linutronix.de>
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On 02/21/2014 09:56 AM, Thomas Gleixner wrote:
> Deferrable timers are beneficial for power saving. They behave like
> standard timers except that their expiry can be delayed up to the
> expiry of the next non deferred timer. That prevents them from waking
> up cpus from deep idle periods.

What does this accomplish that can't be done with hrtimers with enormous
slack?

--Andy