On Mon, 2012-09-24 at 17:26 +0200, Avi Kivity wrote: > I think this is a no-op these (CFS) days. To get schedule() to do > anything, you need to wake up a task, or let time pass, or block. > Otherwise it will see that nothing has changed and as far as it's > concerned you're still the best task to be running (otherwise it > wouldn't have picked you in the first place). Time could have passed enough before calling this that there's now a different/more eligible task around to schedule. Esp. for a !PREEMPT kernel this is could be significant. -- 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