On Fri, Mar 23, 2012 at 11:43 PM, Michael <michael.auckland@xxxxxxxxx> wrote: > I found after update my kernel from 3.0.25 to 3.2.12 or same with kernel 3.3 > Disk performance inside VM reduced by 10x times!!! ( for both kvm > 0.12.5 and qemu 1.0.1) It sounds like you are updating the host kernel. Have you tried running the postgresql test directly on the host? If the problem is a general block I/O performance regression than this would be the first step towards isolating it. 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
