== sanity test 101b: check stride-io mode read-ahead =========================================================================== 02:34:54 (1786170894)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.620956s, 5.1751MB/s
Read-ahead success for size 8192

1.424875s, 5.88726MB/s
Read-ahead success for size 16384

1.476732s, 5.68052MB/s
Read-ahead success for size 32768

1.811681s, 4.63029MB/s
Read-ahead success for size 65536

1.152446s, 7.27896MB/s
Read-ahead success for size 131072

0.968973s, 8.65722MB/s
Read-ahead success for size 262144

1.072194s, 7.82378MB/s
Read-ahead success for size 524288

1.144678s, 7.32836MB/s
Read-ahead success for size 1048576