Re: [Qemu-devel] [PATCH v1 00/17] dataplane: optimization and multi virtqueue support

[Ming Lei]

On Wed, Aug 13, 2014 at 8:35 PM, Paolo Bonzini <address@hidden> 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