On Sat, 2010-12-18 at 19:08 +0200, Avi Kivity wrote: > On 12/17/2010 09:15 AM, Mike Galbraith wrote: > > BTW, with this vruntime donation thingy, what prevents a task from > > forking off accomplices who do nothing but wait for a wakeup and > > yield_to(exploit)? > > > > What's the difference between that and forking off accomplices who > run(exploit) directly? The clock still advances. What I described is a clock stopper. > Many threads dominating the scheduler has been solved by group > scheduling. We need to make sure directed yield doesn't violate that, > but I don't see new problems. Let it become possible to stop clocks, and you surely will :) -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
