== sanity test 101b: check stride-io mode read-ahead =========================================================================== 14:24:38 (1781029478)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

0.768841s, 10.9107MB/s
Read-ahead success for size 8192

0.742143s, 11.3032MB/s
Read-ahead success for size 16384

1.027244s, 8.16613MB/s
Read-ahead success for size 32768

0.789104s, 10.6305MB/s
Read-ahead success for size 65536

0.749082s, 11.1985MB/s
Read-ahead success for size 131072

0.572394s, 14.6553MB/s
Read-ahead success for size 262144

0.624240s, 13.4381MB/s
Read-ahead success for size 524288

0.585001s, 14.3395MB/s
Read-ahead success for size 1048576