Re: [PATCH V3]hrtimer: Fix a performance regression by disablereprogramming in remove_hrtimer

[Ethan Zhao]

Got it.

On Mon, Oct 7, 2013 at 12:41 PM, Mike Galbraith <bitbucket@xxxxxxxxx> wrote:
> On Fri, 2013-10-04 at 20:06 +0800, Ethan Zhao wrote:
>> Mike, Peter,
>>    Seems lots of work has been done these days, studious guys. those
>> patches merged in last stable/dev branch (fix performance regression
>> caused by extra rtimer programming and rescheduling IPI,confusing
>> idle... etc) ? So I could just do a lazy pull for test with my
>> environment.  I need catch up with other mail loops with my vacation
>> again.
>
> Massive timer overhead seems to have crawled off and died while I wasn't
> looking.  Peter's fix for IPI woes..
>
> tip commit ea811747 sched, idle: Fix the idle polling state logic
>
> ..hasn't yet swum upstream.
>
> -Mike
>
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