On Tue, Jun 09, 2015 at 05:22:05PM -0400, Mikulas Patocka wrote: > This patch adds an option to dm statistics to collect and report the > histogram of latencies. > > Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx> I am wondering how does histogram help. IOW, if disks are bad, will average latencies not go up as well and that one can already calcualte using existing stats. Thanks Vivek -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel