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Subject: Re: [RFC] Introduce greedy hrtimer walk on idle
From: Peter Zijlstra <peterz@infradead.org>
To: Venkatesh Pallipadi <venki@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
        Arjan van de Ven <arjan@linux.intel.com>,
        Suresh Siddha <suresh.b.siddha@intel.com>,
        linux-kernel@vger.kernel.org
Date: Fri, 23 Sep 2011 21:55:18 +0200
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On Fri, 2011-09-23 at 11:54 -0700, Venkatesh Pallipadi wrote:
> Comments?

One of the reasons we didn't do it before was added cost to
hrtimer_{add,del}, did you measure workloads that are heavy on  that?