On Wed, Aug 16, 2023 at 08:30:58PM +0200, Ilya Maximets wrote:
> On 8/16/23 17:30, Stefan Hajnoczi wrote:
> > On Wed, Aug 16, 2023 at 03:36:32PM +0200, Ilya Maximets wrote:
> >> On 8/15/23 14:08, Stefan Hajnoczi wrote:
> >>> virtio-blk and virtio-scsi invoke virtio_irqfd_notify() to send Used
>
On 8/16/23 17:30, Stefan Hajnoczi wrote:
> On Wed, Aug 16, 2023 at 03:36:32PM +0200, Ilya Maximets wrote:
>> On 8/15/23 14:08, Stefan Hajnoczi wrote:
>>> virtio-blk and virtio-scsi invoke virtio_irqfd_notify() to send Used
>>> Buffer Notifications from an IOThread. This involves an eventfd
>>>
On Wed, Aug 16, 2023 at 03:36:32PM +0200, Ilya Maximets wrote:
> On 8/15/23 14:08, Stefan Hajnoczi wrote:
> > virtio-blk and virtio-scsi invoke virtio_irqfd_notify() to send Used
> > Buffer Notifications from an IOThread. This involves an eventfd
> > write(2) syscall. Calling this repeatedly when
On 8/15/23 14:08, Stefan Hajnoczi wrote:
> virtio-blk and virtio-scsi invoke virtio_irqfd_notify() to send Used
> Buffer Notifications from an IOThread. This involves an eventfd
> write(2) syscall. Calling this repeatedly when completing multiple I/O
> requests in a row is wasteful.
Hi, Stefan.
virtio-blk and virtio-scsi invoke virtio_irqfd_notify() to send Used
Buffer Notifications from an IOThread. This involves an eventfd
write(2) syscall. Calling this repeatedly when completing multiple I/O
requests in a row is wasteful.
Use the blk_io_plug_call() API to batch together
