On Fri, May 29, 2015 at 11:03:28AM +0800, Dennis Yang wrote: > The server I have tested is equipped with Xeon E3-1246 with 4 physical > cores, so I think CPU might not be the bottleneck of the storage > throughput. > Any idea? Is it any better with this patch? https://github.com/jthornber/linux-2.6/commit/56db3d227ea7e11e42b2b67f8ddc9f6d40c3a3a4 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel