== sanity test 101b: check stride-io mode read-ahead =========================================================================== 01:51:56 (1787550716)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.451281s, 5.78014MB/s
Read-ahead success for size 8192

1.361981s, 6.15912MB/s
Read-ahead success for size 16384

2.221471s, 3.77615MB/s
Read-ahead success for size 32768

2.113606s, 3.96886MB/s
Read-ahead success for size 65536

1.714199s, 4.8936MB/s
Read-ahead success for size 131072

1.354209s, 6.19447MB/s
Read-ahead success for size 262144

1.381961s, 6.07008MB/s
Read-ahead success for size 524288

1.302121s, 6.44226MB/s
Read-ahead success for size 1048576