== sanity test 101b: check stride-io mode read-ahead =========================================================================== 22:07:41 (1789783661)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.470675s, 5.70392MB/s
Read-ahead success for size 8192

2.242833s, 3.74018MB/s
Read-ahead success for size 16384

1.835697s, 4.56971MB/s
Read-ahead success for size 32768

1.554987s, 5.39465MB/s
Read-ahead success for size 65536

1.269942s, 6.6055MB/s
Read-ahead success for size 131072

1.221085s, 6.8698MB/s
Read-ahead success for size 262144

1.707973s, 4.91144MB/s
Read-ahead success for size 524288

1.579373s, 5.31135MB/s
Read-ahead success for size 1048576