On 11/03/2010 07:59 AM, Jeremy Fitzhardinge wrote: > > - with an unmodified struct spinlock, it can check to see if > head == tail after unlock; if not, then there's someone else > trying to lock, and we can do a kick. Unfortunately this > generates very high level of redundant kicks, because the > waiting CPU might not have blocked yet (which is the common > case) > How high is "very high" here -- most of the time (so that any mitigation on the slow patch is useless)? -hpa _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
