Re: [BUG nohz]: wrong user and system time accounting

Mike Galbraith
2017-03-30T13:19:15Z

On Thu, 2017-03-30 at 14:40 +0200, Frederic Weisbecker wrote:
> On Thu, Mar 30, 2017 at 09:58:44AM +0800, Wanpeng Li wrote:

> > There is such a feature skew_tick currently, refer to commit
> > 5307c9556bc (tick: add tick skew boot option), w/ skew_tick=1 boot
> > parameter, the bug disappear, however, the commit also mentioned that
> > it will hurt power consumption.
>
> Oh, I completely missed that!

It suggests it'll harm power consumption because skew removal allegedly
saved power. Recalling what removal did to my 8 socket box, I doubt
adding it back costs large boxen anything at all, rather the opposite.

-Mike