On Mon, 2013-04-22 at 16:49 -0400, Rik van Riel wrote: > Given the fairly high cost of rescheduling a VCPU (which is likely > to include an IPI), versus the short hold time of most spinlocks, > I have the strong suspicion that your approach would win.
https://lkml.org/lkml/2012/5/2/101 If you schedule too often your SPIN_THRESHOLD is far too low. Anyway.. performance can't be that bad, otherwise Jeremey would have spend as much time on it as he did. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
