* qemu internal disk shaper?
@ 2013-12-06 17:35 Vasiliy Tolstov
2013-12-08 15:11 ` Stefano Stabellini
0 siblings, 1 reply; 4+ messages in thread
From: Vasiliy Tolstov @ 2013-12-06 17:35 UTC (permalink / raw)
To: xen-devel
Hi all. I known that i can shape disk iops using cgroups. What about
internal qemu shaper ? http://wiki.qemu.org/Features/DiskIOLimits
does it work with xen? (i want to use it under xen 4.3)
--
Vasiliy Tolstov,
e-mail: v.tolstov@selfip.ru
jabber: vase@selfip.ru
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: qemu internal disk shaper?
2013-12-06 17:35 qemu internal disk shaper? Vasiliy Tolstov
@ 2013-12-08 15:11 ` Stefano Stabellini
2013-12-08 21:05 ` Vasiliy Tolstov
0 siblings, 1 reply; 4+ messages in thread
From: Stefano Stabellini @ 2013-12-08 15:11 UTC (permalink / raw)
To: Vasiliy Tolstov; +Cc: xen-devel
On Fri, 6 Dec 2013, Vasiliy Tolstov wrote:
> Hi all. I known that i can shape disk iops using cgroups. What about
> internal qemu shaper ? http://wiki.qemu.org/Features/DiskIOLimits
> does it work with xen? (i want to use it under xen 4.3)
I haven't tried it myself but given that it works on the underlying
storage, I think it might work with qdisk on Xen. (qdisk is just the
interface exposed to the guest and it is completely decoupled from the
way the image is stored.)
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: qemu internal disk shaper?
2013-12-08 15:11 ` Stefano Stabellini
@ 2013-12-08 21:05 ` Vasiliy Tolstov
2013-12-09 11:29 ` Stefano Stabellini
0 siblings, 1 reply; 4+ messages in thread
From: Vasiliy Tolstov @ 2013-12-08 21:05 UTC (permalink / raw)
To: Stefano Stabellini; +Cc: xen-devel
2013/12/8 Stefano Stabellini <stefano.stabellini@eu.citrix.com>:
> I haven't tried it myself but given that it works on the underlying
> storage, I think it might work with qdisk on Xen. (qdisk is just the
> interface exposed to the guest and it is completely decoupled from the
> way the image is stored.)
Thanks! Is that possible that this can works with phy:/ device? (i'm use lvm)
--
Vasiliy Tolstov,
e-mail: v.tolstov@selfip.ru
jabber: vase@selfip.ru
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: qemu internal disk shaper?
2013-12-08 21:05 ` Vasiliy Tolstov
@ 2013-12-09 11:29 ` Stefano Stabellini
0 siblings, 0 replies; 4+ messages in thread
From: Stefano Stabellini @ 2013-12-09 11:29 UTC (permalink / raw)
To: Vasiliy Tolstov; +Cc: xen-devel, Stefano Stabellini
On Mon, 9 Dec 2013, Vasiliy Tolstov wrote:
> 2013/12/8 Stefano Stabellini <stefano.stabellini@eu.citrix.com>:
> > I haven't tried it myself but given that it works on the underlying
> > storage, I think it might work with qdisk on Xen. (qdisk is just the
> > interface exposed to the guest and it is completely decoupled from the
> > way the image is stored.)
>
>
> Thanks! Is that possible that this can works with phy:/ device? (i'm use lvm)
phy devices use the in-kernel blkback as default block backend.
You would need to specify backendtype=qdisk to use QEMU and qdisk
instead.
However keep in mind that QEMU is slower than the in-kernel blkback.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-12-09 11:29 UTC | newest]
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2013-12-06 17:35 qemu internal disk shaper? Vasiliy Tolstov
2013-12-08 15:11 ` Stefano Stabellini
2013-12-08 21:05 ` Vasiliy Tolstov
2013-12-09 11:29 ` Stefano Stabellini
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