Hi! > > > 21:52:11< pavelm> I was playing with variable scheduling ticks here, > > > hoping to save some power. 21:52:31< pavelm> How big power savings > > > should I expect? 21:52:48< pavelm> What cpu will benefit most? > > > 21:53:04< pavelm> Is there easy way to measure it? > > > > > > I played with that too on some PPCs and was surprised by the absence > > > of benefit, but I might have done something wrong, I need to > > > instrument the stuff better. > > > > Difference between HZ=100 and HZ=1000 was measuerd to be approx. as > > big as disk spinnned up vs. spinned down (i.e. watt or so) by > > seife.... Not *that* unimportant. But it took month or so to get that > > data, because he was basically measuring runtime from full to empty > > battery. > > Have any of these patches been published? I've been playing with > variable ticks too, and I would like to see what other people have been > doing (as so far, the only thing I've managed to do is commit crimes > against nature and the idle loop). Try searching lkml archives for CONFIG_NO_IDLE_HZ.... There are actually two different codebases floating around. Pavel -- People were complaining that M$ turns users into beta-testers... ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!
