On Thu, Mar 03, 2016 at 07:26:24PM +0100, Peter Zijlstra wrote: > On Thu, Mar 03, 2016 at 05:28:55PM +0000, Dietmar Eggemann wrote: > > Wasn't there the problem that this ratio goes to zero if the cpu is idle > > in the old power estimation approach on x86? > > Yeah, there was something funky. So it might have been that when we're nearly idle the hardware runs at low frequency, which under that old code would have resulted in lowering the capacity of that cpu. Which in turn would have resulted in the scheduler moving the little work it had away and it being even more idle. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
