On Fri, Apr 08 2016 at 7:42am -0400, Johannes Thumshirn <jthumshirn@xxxxxxx> wrote: > Ladies and Gentlemen, > To show off some numbers from our testing: > > All tests are performed against the cache of the Array, not the disks as we > wanted to test the Linux stack not the Disk Array. > > All single queue tests have been performed with the deadline I/O Scheduler. > > Comments welcome, have fun reading :-) Any chance you collected performance results from DM MQ on this same testbed without any variant of my lockless patches? The DM SQ results aren't too interesting a reference point. Seeing how much better lockless DM MQ (multipath) is than the old m->lock heacy code (still in 4.6) would be more interesting. Not a big deal if you don't have it.. but figured I'd check to see. And thanks for the numbers you've provided. Mike -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
