tree 8ff7522b4a7607e69786a54f5dada67a8deb886b
parent c96aec344de0de857ef3d7fba53992c7ba311e1e
author Mikulas Patocka <mpatocka@redhat.com> 1433884925 -0400
committer Mike Snitzer <snitzer@redhat.com> 1434559240 -0400

dm stats: collect and report histogram of IO latencies

Add an option to dm statistics to collect and report a histogram of
IO latencies.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>