A couple questions. On Mon, 2011-01-03 at 16:26 -0500, Rik van Riel wrote: > When running SMP virtual machines, it is possible for one VCPU to be > spinning on a spinlock, while the VCPU that holds the spinlock is not > currently running, because the host scheduler preempted it to run > something else. Do you have any numbers? If I were to, say, run a 256 CPU VM on my quad, would this help me get more hackbench or whatever oomph from my (256X80386/20:) box? > Both Intel and AMD CPUs have a feature that detects when a virtual > CPU is spinning on a lock and will trap to the host. Does an Intel Q6600 have this trap gizmo (iow will this do anything at all for my little box if I were to try it out). -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
