Re: [dm-devel] [LSF/MM ATTEND] multipath redesign and dm blk-mq issues

On Fri, Jan 29, 2016 at 07:59:09AM +0100, Hannes Reinecke wrote: > On 01/28/2016 10:23 PM, Benjamin Marzinski wrote: > > I'd like to attend LSF/MM 2016 to participate in any discussions about > > redesigning how device-mapper multipath operates. I spend a significant > > chunk of time dealing

Re: [dm-devel] I/O block when removing thin device on the same pool

On Fri, Jan 29, 2016 at 03:50:31PM +0100, Lars Ellenberg wrote: > On Fri, Jan 22, 2016 at 04:43:46PM +, Joe Thornber wrote: > > On Fri, Jan 22, 2016 at 02:38:28PM +0100, Lars Ellenberg wrote: > > > We have seen lvremove of thin snapshots sometimes minutes, > > > even ~20 minutes before. > > >

Re: [dm-devel] dm-multipath low performance with blk-mq

On Wed, Jan 27 2016 at 12:56pm -0500, Sagi Grimberg wrote: > > > On 27/01/2016 19:48, Mike Snitzer wrote: > >On Wed, Jan 27 2016 at 6:14am -0500, > >Sagi Grimberg wrote: > > > >> > I don't think this is going to help __multipath_map()

Re: [dm-devel] 4.5-rc1 multipath regression

On Fri, Jan 29 2016 at 1:42pm -0500, Bart Van Assche wrote: > On 01/28/2016 03:39 PM, Bart Van Assche wrote: > > There is a regression in the 4.5-rc1 kernel with regard to multipath > > setup. On my SRP I usually use for these tests after a few minutes a > > kernel