On Thu, 16 Nov 2017, Peter Zijlstra wrote: > On Wed, Nov 15, 2017 at 11:03:08PM +0100, Thomas Gleixner wrote: > > If I understand the problem correctly then he wants to avoid the heavy > > lifting in tick_nohz_idle_enter() in the first place, but there is already > > an interesting quirk there which makes it exit early. > > Sure. And there are people who want to do the same for native. > > Adding more ugly and special cases just isn't the way to go about doing > that. > > I'm fairly sure I've told the various groups that want to tinker with > this to work together on this. I've also in fairly significant detail > sketched how to rework the idle code and idle predictors. > > At this point I'm too tired to dig any of that up, so I'll just keep > saying no to patches that don't even attempt to go in the right > direction. That's why I said: But lets not proliferate that. I'd rather see that go away. And yes, the VM folks should talk to those who are trying to solve similar problems for native (embedded/mobile). Thanks, tglx
