On Wed, Nov 12, 2014 at 1:28 AM, Stefan Hajnoczi wrote:
> On Tue, Nov 11, 2014 at 09:17:10AM +0800, Ming Lei wrote:
>> +static void notify_guest_bh(void *opaque)
>> +{
>> +VirtIOSCSI *s = opaque;
>> +unsigned int qid;
>> +uint64_t pending = s->pending_guest_notify;
>> +
>> +s->pend
On Tue, Nov 11, 2014 at 09:17:10AM +0800, Ming Lei wrote:
> +static void notify_guest_bh(void *opaque)
> +{
> +VirtIOSCSI *s = opaque;
> +unsigned int qid;
> +uint64_t pending = s->pending_guest_notify;
> +
> +s->pending_guest_notify = 0;
> +
> +while ((qid = ffsl(pending))) {
>
On Tue, Nov 11, 2014 at 10:52 AM, Fam Zheng wrote:
> On Tue, 11/11 10:29, Ming Lei wrote:
>> On Tue, Nov 11, 2014 at 9:52 AM, Fam Zheng wrote:
>> > On Tue, 11/11 09:17, Ming Lei wrote:
>> >> It isn't necessery to notify guest each time when one request
>> >> is completed, and it should be enough
On Tue, 11/11 10:29, Ming Lei wrote:
> On Tue, Nov 11, 2014 at 9:52 AM, Fam Zheng wrote:
> > On Tue, 11/11 09:17, Ming Lei wrote:
> >> It isn't necessery to notify guest each time when one request
> >> is completed, and it should be enough to just notify one time
> >> for each running of virtio_sc
On Tue, Nov 11, 2014 at 9:52 AM, Fam Zheng wrote:
> On Tue, 11/11 09:17, Ming Lei wrote:
>> It isn't necessery to notify guest each time when one request
>> is completed, and it should be enough to just notify one time
>> for each running of virtio_scsi_iothread_handle_cmd().
>>
>> This patch supr
On Tue, 11/11 09:17, Ming Lei wrote:
> It isn't necessery to notify guest each time when one request
> is completed, and it should be enough to just notify one time
> for each running of virtio_scsi_iothread_handle_cmd().
>
> This patch supresses about 30K/sec write on eventfd.
>
> Signed-off-by:
It isn't necessery to notify guest each time when one request
is completed, and it should be enough to just notify one time
for each running of virtio_scsi_iothread_handle_cmd().
This patch supresses about 30K/sec write on eventfd.
Signed-off-by: Ming Lei
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hw/scsi/virtio-scsi-dataplane.c |
