== sanity test 101b: check stride-io mode read-ahead =========================================================================== 12:43:04 (1777048984)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.001719s, 4.1907MB/s
Read-ahead success for size 8192

2.257027s, 3.71666MB/s
Read-ahead success for size 16384

2.253859s, 3.72189MB/s
Read-ahead success for size 32768

1.956012s, 4.28863MB/s
Read-ahead success for size 65536

1.939474s, 4.3252MB/s
Read-ahead success for size 131072

1.509102s, 5.55868MB/s
Read-ahead success for size 262144

1.384259s, 6.06MB/s
Read-ahead success for size 524288

1.244883s, 6.73847MB/s
Read-ahead success for size 1048576