Got it. Thank you very much.
Best,
Weiwei Jia
On Mon, Dec 19, 2016 at 5:58 AM, Stefan Hajnoczi wrote:
> On Fri, Dec 16, 2016 at 04:42:54PM -0500, Weiwei Jia wrote:
>> Has x-data-plane been used (or accepted) widely in systems. I have
>> this concern since if it hasn't been
On Fri, Dec 16, 2016 at 04:42:54PM -0500, Weiwei Jia wrote:
> Has x-data-plane been used (or accepted) widely in systems. I have
> this concern since if it hasn't been widely accepted, it may
> have/cause some problems we don't know. Do you know some hidden
> problems which may caused by QEMU
Hi Stefan,
I still have another concern like following.
Has x-data-plane been used (or accepted) widely in systems. I have
this concern since if it hasn't been widely accepted, it may
have/cause some problems we don't know. Do you know some hidden
problems which may caused by QEMU x-data-plane
On Fri, Dec 16, 2016 at 4:48 AM, Stefan Hajnoczi wrote:
> On Thu, Dec 15, 2016 at 11:04:23AM -0500, Weiwei Jia wrote:
>> On Thu, Dec 15, 2016 at 3:06 AM, Stefan Hajnoczi wrote:
>> > On Thu, Dec 15, 2016 at 12:17:09AM -0500, Weiwei Jia wrote:
>> >> BTW, do
On Thu, Dec 15, 2016 at 11:04:23AM -0500, Weiwei Jia wrote:
> On Thu, Dec 15, 2016 at 3:06 AM, Stefan Hajnoczi wrote:
> > On Thu, Dec 15, 2016 at 12:17:09AM -0500, Weiwei Jia wrote:
> >> BTW, do we have an example to show users how to config following
> >> virtio-blk dataplane
I will try it later on. Thank you.
Best,
Weiwei Jia
On Thu, Dec 15, 2016 at 7:13 AM, Paolo Bonzini wrote:
>
>
> On 15/12/2016 09:04, Stefan Hajnoczi wrote:
>>> Does this feature only work for VirtIO? Does it work for SCSI or IDE?
>> This only works for virtio-blk and
On Thu, Dec 15, 2016 at 3:06 AM, Stefan Hajnoczi wrote:
> On Thu, Dec 15, 2016 at 12:17:09AM -0500, Weiwei Jia wrote:
>> BTW, do we have an example to show users how to config following
>> virtio-blk dataplane commands into XML configuration file?
>>
>> qemu -object
On Thu, Dec 15, 2016 at 3:04 AM, Stefan Hajnoczi wrote:
> On Wed, Dec 14, 2016 at 08:06:10PM -0500, Weiwei Jia wrote:
>> Hi Stefan,
>>
>> Thanks for your reply. Please see the inline replies.
>>
>> On Wed, Dec 14, 2016 at 2:31 PM, Stefan Hajnoczi wrote:
>>
On 15/12/2016 09:04, Stefan Hajnoczi wrote:
>> Does this feature only work for VirtIO? Does it work for SCSI or IDE?
> This only works for virtio-blk and virtio-scsi. The virtio-scsi
> dataplane support is more recent and I don't remember if it is complete.
> I've CCed Fam and Paolo who worked
On Thu, Dec 15, 2016 at 12:17:09AM -0500, Weiwei Jia wrote:
> BTW, do we have an example to show users how to config following
> virtio-blk dataplane commands into XML configuration file?
>
> qemu -object iothread,id=iothread0 \
> -drive if=none,id=drive0,file=test.img,format=raw,cache=none
On Wed, Dec 14, 2016 at 08:06:10PM -0500, Weiwei Jia wrote:
> Hi Stefan,
>
> Thanks for your reply. Please see the inline replies.
>
> On Wed, Dec 14, 2016 at 2:31 PM, Stefan Hajnoczi wrote:
> > On Wed, Dec 14, 2016 at 12:58:11AM -0500, Weiwei Jia wrote:
> >> I find the
BTW, do we have an example to show users how to config following
virtio-blk dataplane commands into XML configuration file?
qemu -object iothread,id=iothread0 \
-drive if=none,id=drive0,file=test.img,format=raw,cache=none \
-device virtio-blk-pci,iothread=iothread0,drive=drive0
Hi Stefan,
Thanks for your reply. Please see the inline replies.
On Wed, Dec 14, 2016 at 2:31 PM, Stefan Hajnoczi wrote:
> On Wed, Dec 14, 2016 at 12:58:11AM -0500, Weiwei Jia wrote:
>> I find the timeslice of vCPU thread in QEMU/KVM is unstable when there
>> are lots of
On Wed, Dec 14, 2016 at 12:58:11AM -0500, Weiwei Jia wrote:
> I find the timeslice of vCPU thread in QEMU/KVM is unstable when there
> are lots of read requests (for example, read 4KB each time (8GB in
> total) from one file) from Guest OS. I also find that this phenomenon
> may be caused by lock
Hi Stefan,
I find the timeslice of vCPU thread in QEMU/KVM is unstable when there
are lots of read requests (for example, read 4KB each time (8GB in
total) from one file) from Guest OS. I also find that this phenomenon
may be caused by lock contention in QEMU layer. I find this problem
under
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