== sanity test 101b: check stride-io mode read-ahead =========================================================================== 23:34:54 (1773200094)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

2.690868s, 3.11744MB/s
Read-ahead success for size 8192

1.905619s, 4.40204MB/s
Read-ahead success for size 16384

2.112897s, 3.97019MB/s
Read-ahead success for size 32768

1.801599s, 4.6562MB/s
Read-ahead success for size 65536

1.692168s, 4.95731MB/s
Read-ahead success for size 131072

1.456457s, 5.7596MB/s
Read-ahead success for size 262144

1.627870s, 5.15312MB/s
Read-ahead success for size 524288

0.851812s, 9.84796MB/s
Read-ahead success for size 1048576