On 06/11/2018 08:13, Christoph Hellwig wrote:
> On Tue, Nov 06, 2018 at 10:45:08AM +0800, Jason Wang wrote:
>>> Storage industry is shifting away from SCSI, which has a scaling
>>> problem.
>>
>> Know little about storage. For scaling, do you mean SCSI protocol itself? If
>> not, it's probably not
On Fri, Nov 02, 2018 at 02:26:00PM -0400, Michael S. Tsirkin wrote:
> On Fri, Nov 02, 2018 at 06:21:22PM +, Vitaly Mayatskikh wrote:
> > vhost_blk is a host-side kernel mode accelerator for virtio-blk. The
> > driver allows VM to reach a near bare-metal disk performance. See IOPS
> > numbers be
On Mon, Nov 05, 2018 at 11:15:04AM -0500, Vitaly Mayatskih wrote:
> On Mon, Nov 5, 2018 at 10:48 AM Christian Borntraeger
> wrote:
>
> > For the record, we still do use virtio-blk a lot. As we see new things like
> > discard/write zero
> > support it seems that others do as well.
>
> Yes, trim/
On Tue, Nov 06, 2018 at 10:45:08AM +0800, Jason Wang wrote:
> > Storage industry is shifting away from SCSI, which has a scaling
> > problem.
>
>
> Know little about storage. For scaling, do you mean SCSI protocol itself? If
> not, it's probably not a real issue for virtio-scsi itself.
The above
On 2018/11/5 上午11:23, Vitaly Mayatskih wrote:
On Sun, Nov 4, 2018 at 10:00 PM Jason Wang wrote:
# fio num-jobs
# A: bare metal over block
# B: bare metal over file
# C: virtio-blk over block
# D: virtio-blk over file
# E: vhost-blk bio over block
# F: vhost-blk kiocb over block
# G: vhost-blk
On 11/05/2018 04:00 AM, Jason Wang wrote:
>
> On 2018/11/3 上午2:21, Vitaly Mayatskikh wrote:
>> vhost_blk is a host-side kernel mode accelerator for virtio-blk. The
>> driver allows VM to reach a near bare-metal disk performance. See IOPS
>> numbers below (fio --rw=randread --bs=4k).
>>
>> This i
On 11/02/2018 07:26 PM, Michael S. Tsirkin wrote:
> On Fri, Nov 02, 2018 at 06:21:22PM +, Vitaly Mayatskikh wrote:
>> vhost_blk is a host-side kernel mode accelerator for virtio-blk. The
>> driver allows VM to reach a near bare-metal disk performance. See IOPS
>> numbers below (fio --rw=randrea
On 2018/11/3 上午2:21, Vitaly Mayatskikh wrote:
vhost_blk is a host-side kernel mode accelerator for virtio-blk. The
driver allows VM to reach a near bare-metal disk performance. See IOPS
numbers below (fio --rw=randread --bs=4k).
This implementation uses kiocb interface. It is slightly slower th
On Fri, Nov 02, 2018 at 06:21:22PM +, Vitaly Mayatskikh wrote:
> vhost_blk is a host-side kernel mode accelerator for virtio-blk. The
> driver allows VM to reach a near bare-metal disk performance. See IOPS
> numbers below (fio --rw=randread --bs=4k).
>
> This implementation uses kiocb interfa
