== sanity test 101b: check stride-io mode read-ahead =========================================================================== 07:53:49 (1786103629)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.367075s, 6.13617MB/s
Read-ahead success for size 8192

1.047865s, 8.00543MB/s
Read-ahead success for size 16384

1.321212s, 6.34918MB/s
Read-ahead success for size 32768

1.444479s, 5.80736MB/s
Read-ahead success for size 65536

1.218009s, 6.88715MB/s
Read-ahead success for size 131072

1.192271s, 7.03582MB/s
Read-ahead success for size 262144

1.036897s, 8.09011MB/s
Read-ahead success for size 524288

1.133685s, 7.39942MB/s
Read-ahead success for size 1048576