glusterfs
1performance.open-behind=on
2performance.write-behind=off
3performance.stat-prefetch=off
4performance.quick-read=off
5performance.strict-o-direct=on
6performance.read-ahead=off
7performance.io-cache=off
8performance.readdir-ahead=off
9performance.client-io-threads=on
10server.event-threads=4
11client.event-threads=4
12performance.read-after-open=yes
13