On Tue, Feb 15, 2011 at 10:15 AM, Thomas Broda <thomas@xxxxxxxxxxxxx> wrote: > On Tue, 15 Feb 2011 09:19:23 +0000, Stefan Hajnoczi > <stefanha@xxxxxxxxx> wrote: > >> Did you run dd with O_DIRECT? > >> dd if=/dev/zero of=<path-to-device> oflag=direct bs=64k > > Using O_DIRECT, performance went down to 11 MB/s on the hypervisor... Hmm...can you restate that as: host X MB/s guest Y MB/s I don't understand from your answer which values you have found. Stefan -- 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
