Re: [PATCH 3/4] sched: introduce synchronized idle injection

Peter Zijlstra
2015-11-20T10:20:27Z

On Fri, Nov 20, 2015 at 10:45:14AM +0100, Thomas Gleixner wrote:

> The whole concept of faking idle is simply crap.

:-)

> If you want to avoid that stuff in the scheduler, then create a
> mechanism which just defers the next timer interrupt for X
> milliseconds and does not any fiddling with NOHZ state and such.

Not sure that will actually result in the machine going idle. Device
interrupts will still wake tasks and get them ran.