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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
