On Fri, 2010-12-03 at 09:48 -0500, Rik van Riel wrote: > On 12/03/2010 09:45 AM, Mike Galbraith wrote: > > > I'll have to go back and re-read that. Off the top of my head, I see no > > way it could matter which container the numbers live in as long as they > > keep advancing, and stay in the same runqueue. (hm, task weights would > > have to be the same too or scaled. dangerous business, tinkering with > > vruntimes) > > They're not necessarily in the same runqueue, the > VCPU that is given time might be on another CPU > than the one that was spinning on a lock. I don't think pumping vruntime cross cfs_rq would be safe, for the reason noted (et al). No competition means vruntime is meaningless. Donating just advances a clock that nobody's looking at. -Mike -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
