== sanity test 101b: check stride-io mode read-ahead =========================================================================== 16:25:24 (1787862324)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.658709s, 5.05731MB/s
Read-ahead success for size 8192

1.763232s, 4.75752MB/s
Read-ahead success for size 16384

1.996494s, 4.20167MB/s
Read-ahead success for size 32768

1.744149s, 4.80957MB/s
Read-ahead success for size 65536

1.762627s, 4.75915MB/s
Read-ahead success for size 131072

1.341960s, 6.25101MB/s
Read-ahead success for size 262144

1.489767s, 5.63082MB/s
Read-ahead success for size 524288

0.869017s, 9.65298MB/s
Read-ahead success for size 1048576