== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:24:42 (1746113082)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

0.340217s, 24.6566MB/s
Read-ahead success for size 8192

0.395136s, 21.2297MB/s
Read-ahead success for size 16384

0.401787s, 20.8782MB/s
Read-ahead success for size 32768

0.354409s, 23.6693MB/s
Read-ahead success for size 65536

0.325977s, 25.7337MB/s
Read-ahead success for size 131072

0.303369s, 27.6515MB/s
Read-ahead success for size 262144

0.315598s, 26.58MB/s
Read-ahead success for size 524288

0.352175s, 23.8194MB/s
Read-ahead success for size 1048576