On Mon, 2013-04-22 at 16:32 -0400, Rik van Riel wrote: > > IIRC one of the reasons was that the performance improvement wasn't > as obvious. Rescheduling VCPUs takes a fair amount of time, quite > probably more than the typical hold time of a spinlock.
IIRC it would spin for a while before blocking.. /me goes re-read some of that thread... Ah, its because PLE is curing most of it.. !PLE it had huge gains but apparently nobody cares about !PLE hardware anymore :-) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html