== sanity test 101b: check stride-io mode read-ahead =========================================================================== 20:44:52 (1733795092)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

4.273710s, 1.96284MB/s
Read-ahead success for size 8192

4.203528s, 1.99561MB/s
Read-ahead success for size 16384

3.898546s, 2.15173MB/s
Read-ahead success for size 32768

3.755294s, 2.23381MB/s
Read-ahead success for size 65536

3.952991s, 2.12209MB/s
Read-ahead success for size 131072

3.768421s, 2.22603MB/s
Read-ahead success for size 262144

4.110607s, 2.04072MB/s
Read-ahead success for size 524288

3.580239s, 2.34303MB/s
Read-ahead success for size 1048576