== sanity test 101b: check stride-io mode read-ahead =========================================================================== 14:27:33 (1783967253)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.802720s, 4.65331MB/s
Read-ahead success for size 8192

2.389597s, 3.51047MB/s
Read-ahead success for size 16384

2.535373s, 3.30863MB/s
Read-ahead success for size 32768

2.099191s, 3.99611MB/s
Read-ahead success for size 65536

1.702893s, 4.92609MB/s
Read-ahead success for size 131072

1.531246s, 5.47829MB/s
Read-ahead success for size 262144

1.297174s, 6.46683MB/s
Read-ahead success for size 524288

1.221128s, 6.86956MB/s
Read-ahead success for size 1048576