== sanity test 101b: check stride-io mode read-ahead =========================================================================== 22:18:00 (1775873880)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.319043s, 6.35962MB/s
Read-ahead success for size 8192

1.512938s, 5.54458MB/s
Read-ahead success for size 16384

1.364817s, 6.14632MB/s
Read-ahead success for size 32768

1.335281s, 6.28228MB/s
Read-ahead success for size 65536

0.996109s, 8.42138MB/s
Read-ahead success for size 131072

0.977493s, 8.58176MB/s
Read-ahead success for size 262144

0.863684s, 9.71259MB/s
Read-ahead success for size 524288

0.912632s, 9.19167MB/s
Read-ahead success for size 1048576