Re: [Qemu-devel] [PATCH 0/2] coroutine: dynamically scale pool size

[Ming Lei]

On Fri, Jul 4, 2014 at 2:31 PM, Paolo Bonzini <address@hidden> wrote:
> Il 04/07/2014 07:10, Ming Lei ha scritto:
>
>> With both the two coroutine patches and the block plug&unplug patches,
>> performance of qemu.git/master virtio-blk dataplane can recover to level
>> of
>> QEMU 2.0.
>
>
> So the excessive writes (to eventfd and irqfd) are not a problem? That'd be
> a relief. :)

I mean it is in a level, but your aio_notify() patch still can improve virtioblk
dataplane performance some, in my test, with 5~10K IOPS improvement,
which should belong to same level, because my test is a bit coarse, :-)

IMO not only virtioblk can benefit from your patch, others can benefit too.

Thanks,
--
Ming Lei