On 2016-03-31 22:04, Mike Snitzer wrote:
I developed these changes some weeks ago but have since focused on regression and performance testing on larger NUMA systems. For regression testing I've been using mptest: https://github.com/snitm/mptest For performance testing I've been using a null_blk device (with various configuration permutations, e.g. pinning memory to a particular NUMA node, and varied number of submit_queues). By eliminating multipath's heavy use of the m->lock spinlock in the fast IO paths serious performance improvements are realized.
Hi Mike, Are this the patches you pointed Hannes to? If yes, please add my Tested-by: Johannes Thumshirn <jthumshirn@xxxxxxx> -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
