== sanity test 101b: check stride-io mode read-ahead =========================================================================== 16:02:37 (1788638557)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.540988s, 5.44366MB/s
Read-ahead success for size 8192

1.551888s, 5.40542MB/s
Read-ahead success for size 16384

1.887151s, 4.44512MB/s
Read-ahead success for size 32768

1.271503s, 6.5974MB/s
Read-ahead success for size 65536

1.461294s, 5.74053MB/s
Read-ahead success for size 131072

1.143203s, 7.33781MB/s
Read-ahead success for size 262144

1.017094s, 8.24762MB/s
Read-ahead success for size 524288

0.888981s, 9.43621MB/s
Read-ahead success for size 1048576