On Wed, Dec 19, 2012 at 04:53:22PM +0800, Asias He wrote:
> On 12/18/2012 08:39 PM, Michael S. Tsirkin wrote:
> > At the moment when vector is masked virtio will poll it
> > in userspace, even if it is handled by irqfd.
> > This is done in order to update pending bits, but
> > it's not really requi
On 12/18/2012 08:39 PM, Michael S. Tsirkin wrote:
> At the moment when vector is masked virtio will poll it
> in userspace, even if it is handled by irqfd.
> This is done in order to update pending bits, but
> it's not really required until someone reads the pending bits.
> On the other hand this r
On Tue, Dec 18, 2012 at 02:20:20PM +0200, Michael S. Tsirkin wrote:
> At the moment when vector is masked virtio will poll it
> in userspace, even if it is handled by irqfd.
> This is done in order to update pending bits, but
> it's not really required until someone reads the pending bits.
> On the
At the moment when vector is masked virtio will poll it
in userspace, even if it is handled by irqfd.
This is done in order to update pending bits, but
it's not really required until someone reads the pending bits.
On the other hand this read results in extra io thread wakeups.
As we only implemen
