Stefan Hajnoczi writes:
> On Tue, Apr 1, 2014 at 4:27 AM, Theodore Ts'o wrote:
>> On Mon, Mar 31, 2014 at 02:22:50PM +1030, Rusty Russell wrote:
>>>
>>> It's head of my virtio-next tree.
>>
>> Hey Rusty,
>>
>> While we have your attention --- what's your opinion about adding TRIM
>> support to vi
On Tue, Apr 1, 2014 at 4:27 AM, Theodore Ts'o wrote:
> On Mon, Mar 31, 2014 at 02:22:50PM +1030, Rusty Russell wrote:
>>
>> It's head of my virtio-next tree.
>
> Hey Rusty,
>
> While we have your attention --- what's your opinion about adding TRIM
> support to virtio-blk. I understand that you're
On Mon, Mar 31, 2014 at 02:22:50PM +1030, Rusty Russell wrote:
>
> It's head of my virtio-next tree.
Hey Rusty,
While we have your attention --- what's your opinion about adding TRIM
support to virtio-blk. I understand that you're starting an OASIS
standardization process for virtio --- what do
Venkatesh Srinivas writes:
> On Wed, Mar 19, 2014 at 10:48 AM, Venkatesh Srinivas
> wrote:
>>> And I rewrote it substantially, mainly to take
>>> VIRTIO_RING_F_INDIRECT_DESC into account.
>>>
>>> As QEMU sets the vq size for PCI to 128, Venkatash's patch wouldn't
>>> have made a change. This ver
On Wed, Mar 19, 2014 at 10:48 AM, Venkatesh Srinivas
wrote:
>> And I rewrote it substantially, mainly to take
>> VIRTIO_RING_F_INDIRECT_DESC into account.
>>
>> As QEMU sets the vq size for PCI to 128, Venkatash's patch wouldn't
>> have made a change. This version does (since QEMU also offers
>>
> And I rewrote it substantially, mainly to take
> VIRTIO_RING_F_INDIRECT_DESC into account.
>
> As QEMU sets the vq size for PCI to 128, Venkatash's patch wouldn't
> have made a change. This version does (since QEMU also offers
> VIRTIO_RING_F_INDIRECT_DESC.
That divide-by-2 produced the same qu
ty...@mit.edu writes:
> On Mon, Mar 17, 2014 at 11:12:15AM +1030, Rusty Russell wrote:
>>
>> Note that with indirect descriptors (which is supported by Almost
>> Everyone), we can actually use the full index, so this value is a bit
>> pessimistic. But it's OK as a starting point.
>
> So is this s
On Mon, Mar 17, 2014 at 11:12:15AM +1030, Rusty Russell wrote:
>
> Note that with indirect descriptors (which is supported by Almost
> Everyone), we can actually use the full index, so this value is a bit
> pessimistic. But it's OK as a starting point.
So is this something that can go upstream w
Theodore Ts'o writes:
> The current virtio block sets a queue depth of 64, which is
> insufficient for very fast devices. It has been demonstrated that
> with a high IOPS device, using a queue depth of 256 can double the
> IOPS which can be sustained.
>
> As suggested by Venkatash Srinivas, set t
On Sat, Mar 15, 2014 at 06:57:23AM -0700, Christoph Hellwig wrote:
> I don't think this should be a module parameter. The default sizing
> should be based of the parameters of the actual virtqueue, and if we
> want to allow tuning it it should be by a sysfs attribute, preferable
> using the same s
On Fri, Mar 14, 2014 at 11:34:31PM -0400, Theodore Ts'o wrote:
> The current virtio block sets a queue depth of 64, which is
> insufficient for very fast devices. It has been demonstrated that
> with a high IOPS device, using a queue depth of 256 can double the
> IOPS which can be sustained.
>
>
On Sat, Mar 15, 2014 at 06:57:01AM -0400, Konrad Rzeszutek Wilk wrote:
> >+pr_info("%s: using queue depth %d\n", vblk->disk->disk_name,
> >+virtio_mq_reg.queue_depth);
>
> Isn't that visible from sysfs?
As near as I can tell, it's not. I haven't been able to find anything
that ei
On March 14, 2014 11:34:31 PM EDT, Theodore Ts'o wrote:
>The current virtio block sets a queue depth of 64, which is
>insufficient for very fast devices. It has been demonstrated that
>with a high IOPS device, using a queue depth of 256 can double the
>IOPS which can be sustained.
>
>As suggested
The current virtio block sets a queue depth of 64, which is
insufficient for very fast devices. It has been demonstrated that
with a high IOPS device, using a queue depth of 256 can double the
IOPS which can be sustained.
As suggested by Venkatash Srinivas, set the queue depth by default to
be on
14 matches
Mail list logo
