On Wed, Jun 01, 2011 at 11:19:58AM +0800, Zhi Yong Wu wrote: > On Tue, May 31, 2011 at 03:55:49PM -0400, Vivek Goyal wrote: > >Date: Tue, 31 May 2011 15:55:49 -0400 > >From: Vivek Goyal <vgo...@redhat.com> > >To: Zhi Yong Wu <wu...@linux.vnet.ibm.com> > >Cc: kw...@redhat.com, aligu...@us.ibm.com, stefa...@linux.vnet.ibm.com, > > k...@vger.kernel.org, guijianf...@cn.fujitsu.com, > > qemu-devel@nongnu.org, wu...@cn.ibm.com, > > herb...@gondor.hengli.com.au, luow...@cn.ibm.com, zh...@cn.ibm.com, > > zhaoy...@cn.ibm.com, l...@redhat.com, rahar...@us.ibm.com > >Subject: Re: [Qemu-devel] [RFC]QEMU disk I/O limits > >User-Agent: Mutt/1.5.21 (2010-09-15) > > > >On Mon, May 30, 2011 at 01:09:23PM +0800, Zhi Yong Wu wrote: > > > >[..] > >> 3.) How the users enable and play with it > >> QEMU -drive option will be extended so that disk I/O limits can be > >> specified on its command line, such as -drive [iops=xxx,][throughput=xxx] > >> or -drive [iops_rd=xxx,][iops_wr=xxx,][throughput=xxx] etc. When this > >> argument is specified, it means that "disk I/O limits" feature is enabled > >> for this drive disk. > > > >How does throughput interface look like? is it bytes per second or something > >else? > Given your suggestion, its form will look like below: > > -drive [iops=xxx][,bps=xxx] or -drive > [iops_rd=xxx][,iops_wr=xxx][,bps_rd=xxx][,bps_wr=xxx]
Can one specify both iops and bps rule for the same drive? Thanks Vivek
