== sanity test 101b: check stride-io mode read-ahead =========================================================================== 02:07:56 (1785391676)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.790348s, 3.00629MB/s
Read-ahead success for size 8192

1.875162s, 4.47354MB/s
Read-ahead success for size 16384

3.183877s, 2.63471MB/s
Read-ahead success for size 32768

2.846200s, 2.9473MB/s
Read-ahead success for size 65536

2.040297s, 4.11146MB/s
Read-ahead success for size 131072

1.499036s, 5.596MB/s
Read-ahead success for size 262144

1.690513s, 4.96217MB/s
Read-ahead success for size 524288

2.522200s, 3.32591MB/s
Read-ahead success for size 1048576