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Re: [Qemu-devel] [RFC]QEMU disk I/O limits
From: |
Vivek Goyal |
Subject: |
Re: [Qemu-devel] [RFC]QEMU disk I/O limits |
Date: |
Tue, 31 May 2011 10:04:02 -0400 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, May 31, 2011 at 08:50:40AM -0500, Anthony Liguori wrote:
> On 05/31/2011 08:45 AM, Vivek Goyal wrote:
> >On Mon, May 30, 2011 at 01:09:23PM +0800, Zhi Yong Wu wrote:
> >>Hello, all,
> >>
> >> I have prepared to work on a feature called "Disk I/O limits" for
> >> qemu-kvm projeect.
> >> This feature will enable the user to cap disk I/O amount performed by
> >> a VM.It is important for some storage resources to be shared among
> >> multi-VMs. As you've known, if some of VMs are doing excessive disk I/O,
> >> they will hurt the performance of other VMs.
> >>
> >
> >Hi Zhiyong,
> >
> >Why not use kernel blkio controller for this and why reinvent the wheel
> >and implement the feature again in qemu?
>
> blkio controller only works for block devices. It doesn't work when
> using files.
So can't we comeup with something to easily determine which device backs
up this file? Though that will still not work for NFS backed storage
though.
Thanks
Vivek
- [Qemu-devel] [RFC]QEMU disk I/O limits, Zhi Yong Wu, 2011/05/30
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Vivek Goyal, 2011/05/31
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Anthony Liguori, 2011/05/31
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits,
Vivek Goyal <=
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Anthony Liguori, 2011/05/31
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Vivek Goyal, 2011/05/31
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Anthony Liguori, 2011/05/31
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Vivek Goyal, 2011/05/31
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Anthony Liguori, 2011/05/31
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Mike Snitzer, 2011/05/31
- Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Anthony Liguori, 2011/05/31
Re: [Qemu-devel] [RFC]QEMU disk I/O limits, Daniel P. Berrange, 2011/05/31