== sanity test 101b: check stride-io mode read-ahead =========================================================================== 22:53:52 (1786935232)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

0.479192s, 17.5057MB/s
Read-ahead success for size 8192

0.479070s, 17.5102MB/s
Read-ahead success for size 16384

0.491814s, 17.0565MB/s
Read-ahead success for size 32768

0.509704s, 16.4578MB/s
Read-ahead success for size 65536

0.416937s, 20.1196MB/s
Read-ahead success for size 131072

0.405727s, 20.6755MB/s
Read-ahead success for size 262144

0.413677s, 20.2782MB/s
Read-ahead success for size 524288

0.393721s, 21.306MB/s
Read-ahead success for size 1048576