Re: [PATCH] sched: Make schedstats a runtime tunable that is disabled by default

[Ingo Molnar]

* Mel Gorman <mgor...@techsingularity.net> wrote:

> -     ttwu_stat(p, smp_processor_id(), 0);
> +     if (schedstat_enabled())
> +             ttwu_stat(p, smp_processor_id(), 0);

Yeah. I actually like this for the cleanup factor as well: your patch makes it 
a 
_lot_ more obvious what is a statistics slowpath and what is not.

We tried to achieve that effect via the _stat() naming, but in hindsight that 
was 
a failure.

Thanks,

        Ingo