On Sat, Apr 9, 2016 at 1:07 PM, Peter Zijlstra <pet...@infradead.org> wrote: > On Fri, Apr 08, 2016 at 10:59:59PM +0200, Rafael J. Wysocki wrote: >> On Friday, April 08, 2016 08:50:54 AM Mike Galbraith wrote: >> > On Fri, 2016-04-08 at 08:45 +0200, Peter Zijlstra wrote: >> > >> > > Cute, I thought you used governor=performance for your runs? >> > >> > I do, and those numbers are with it thus set. >> >> Well, this is a trade-off. >> >> 4.5 introduced a power regression here so this one goes back to the previous >> state of things. > > Just for my elucidation; how can gov=performance have a 'power' > regression?
Because of what is used as the "default" idle state most of the time. C1 was used before 4.5 and that changed to polling in 4.5.
