On Thu, Jul 3, 2014 at 12:38 AM, Paolo Bonzini <pbonz...@redhat.com> wrote: > >> On Thu, Jul 3, 2014 at 12:23 AM, Paolo Bonzini <pbonz...@redhat.com> wrote: >> > Il 02/07/2014 18:13, Ming Lei ha scritto: >> > >> >> That must be for generating guest irq, which should have been >> >> processed as batch easily. >> > >> > >> > No, guest irqs are generated (with notify_guest) on every I/O completion >> > even in 2.0. >> >> In 2.0, only notify_guest() is called after event batch is completed, > > Ah, you're right. > >> I wrote one patch days ago for fixing the problem, and today >> it is just verified that writes can be decreased to 10K from 120K. > > Great. Can you test/review my aio_notify patch and submit both then? Bonus > points, but not a requirement IMO, if it also helps non-dataplane.
OK, I will take a look and test tomorrow, and it is a bit late for me today. Thanks, -- Ming Lei