On Fri, Jun 10, 2011 at 11:28:34AM +0200, Lars Ellenberg wrote: > On Fri, Jun 10, 2011 at 09:44:25AM +0100, Joe Thornber wrote: > > On Thu, Jun 09, 2011 at 12:08:08PM -0400, Mikulas Patocka wrote: > > > > > > > > > On Thu, 9 Jun 2011, Joe Thornber wrote: > > > > What we're trying to do is avoid kcopyd issuing so much io that it > > > > interferes with userland io. > > > > > > But you don't know if there is some userland IO or not to the same disk. > > > > None the less, this was the motivation Alasdair gave for wanting this > > throttling. > > Not sure if it helps, > but are you familiar with the MD raid rebuild throttling? Lars, This is very helpful, thankyou. Any thoughts on this Mikulas? - Joe -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
