Re: [RFC] Introduce greedy hrtimer walk on idle

[Venki Pallipadi]

On Fri, Sep 23, 2011 at 12:55 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> 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?
>

I haven't seen any measurable overhead with workloads I have tried.
But, I don't think I have hit that path hard enough. Do you have any
particular workload in mind?
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