On Wed, Aug 13, 2014 at 8:35 PM, Paolo Bonzini <pbonz...@redhat.com> wrote: > Il 13/08/2014 13:43, Ming Lei ha scritto: >>> > The below patch is basically the minimal change to bypass coroutines. Of >>> > course >>> > the block.c part is not acceptable as is (the change to >>> > refresh_total_sectors >>> > is broken, the others are just ugly), but it is a start. Please run it >>> > with >>> > your fio workloads, or write an aio-based version of a qemu-img/qemu-io >>> > *I/O* >>> > benchmark. >> I have to say this approach is much cleaver, and better than mine, and >> I just run a quick fio randread test in VM, and IOPS can improve > 10% >> than bypass coroutine patch. > > Great, do you have a profile without and with the patch?
Please see below link: http://pastebin.com/0VKSMKxv Ming
