From: Anthony Liguori <aliguori@us.ibm.com>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: kwolf@redhat.com, stefanha@linux.vnet.ibm.com,
kvm@vger.kernel.org, guijianfeng@cn.fujitsu.com,
qemu-devel@nongnu.org, wuzhy@cn.ibm.com,
herbert@gondor.hengli.com.au,
Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>,
luowenj@cn.ibm.com, zhanx@cn.ibm.com, zhaoyang@cn.ibm.com,
llim@redhat.com, Ryan A Harper <raharper@us.ibm.com>
Subject: Re: [Qemu-devel] [RFC]QEMU disk I/O limits
Date: Tue, 31 May 2011 08:50:40 -0500 [thread overview]
Message-ID: <4DE4F230.2040203@us.ibm.com> (raw)
In-Reply-To: <20110531134537.GE16382@redhat.com>
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.
Regards,
Anthony Liguori
next prev parent reply other threads:[~2011-05-31 13:51 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-30 5:09 [Qemu-devel] [RFC]QEMU disk I/O limits Zhi Yong Wu
2011-05-31 13:45 ` Vivek Goyal
2011-05-31 13:50 ` Anthony Liguori [this message]
2011-05-31 14:04 ` Vivek Goyal
2011-05-31 14:25 ` Anthony Liguori
2011-05-31 17:59 ` Vivek Goyal
2011-05-31 18:39 ` Anthony Liguori
2011-05-31 19:24 ` Vivek Goyal
2011-05-31 23:30 ` Anthony Liguori
2011-06-01 13:20 ` Vivek Goyal
2011-06-01 21:15 ` Stefan Hajnoczi
2011-06-01 21:42 ` Vivek Goyal
2011-06-01 22:28 ` Stefan Hajnoczi
2011-06-04 8:54 ` Blue Swirl
2011-05-31 20:48 ` Mike Snitzer
2011-05-31 22:22 ` Anthony Liguori
2011-05-31 13:56 ` Daniel P. Berrange
2011-05-31 14:10 ` Vivek Goyal
2011-05-31 14:19 ` Daniel P. Berrange
2011-05-31 14:28 ` Vivek Goyal
2011-05-31 15:28 ` Ryan Harper
2011-05-31 19:55 ` Vivek Goyal
2011-06-01 3:12 ` Zhi Yong Wu
2011-06-02 9:33 ` Michal Suchanek
2011-06-03 6:56 ` Zhi Yong Wu
2011-06-01 3:19 ` Zhi Yong Wu
2011-06-01 13:32 ` Vivek Goyal
2011-06-02 6:07 ` Zhi Yong Wu
2011-06-02 6:17 ` Sasha Levin
2011-06-02 6:29 ` Zhi Yong Wu
2011-06-02 7:15 ` Sasha Levin
2011-06-02 8:18 ` Zhi Yong Wu
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