== sanity test 101b: check stride-io mode read-ahead =========================================================================== 04:07:18 (1788595638)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.132015s, 3.93459MB/s
Read-ahead success for size 8192

1.789393s, 4.68796MB/s
Read-ahead success for size 16384

1.909402s, 4.39332MB/s
Read-ahead success for size 32768

1.858550s, 4.51352MB/s
Read-ahead success for size 65536

1.836051s, 4.56883MB/s
Read-ahead success for size 131072

1.514285s, 5.53965MB/s
Read-ahead success for size 262144

1.199095s, 6.99578MB/s
Read-ahead success for size 524288

1.021486s, 8.21216MB/s
Read-ahead success for size 1048576