== sanity test 101b: check stride-io mode read-ahead =========================================================================== 14:05:31 (1789063531)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.178734s, 3.85022MB/s
Read-ahead success for size 8192

2.043697s, 4.10462MB/s
Read-ahead success for size 16384

2.703369s, 3.10302MB/s
Read-ahead success for size 32768

2.604354s, 3.22099MB/s
Read-ahead success for size 65536

1.797228s, 4.66753MB/s
Read-ahead success for size 131072

1.579943s, 5.30944MB/s
Read-ahead success for size 262144

1.876592s, 4.47013MB/s
Read-ahead success for size 524288

2.000477s, 4.1933MB/s
Read-ahead success for size 1048576