== sanity test 101b: check stride-io mode read-ahead =========================================================================== 20:48:20 (1787100500)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.869256s, 4.48767MB/s
Read-ahead success for size 8192

2.053557s, 4.08492MB/s
Read-ahead success for size 16384

2.265509s, 3.70275MB/s
Read-ahead success for size 32768

1.638714s, 5.11902MB/s
Read-ahead success for size 65536

2.007374s, 4.1789MB/s
Read-ahead success for size 131072

1.452212s, 5.77643MB/s
Read-ahead success for size 262144

1.359539s, 6.17019MB/s
Read-ahead success for size 524288

1.568941s, 5.34667MB/s
Read-ahead success for size 1048576