== sanity test 101b: check stride-io mode read-ahead =========================================================================== 08:27:30 (1788611250)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.307858s, 6.41401MB/s
Read-ahead success for size 8192

1.743738s, 4.8107MB/s
Read-ahead success for size 16384

1.701740s, 4.92943MB/s
Read-ahead success for size 32768

1.854602s, 4.52313MB/s
Read-ahead success for size 65536

1.234916s, 6.79286MB/s
Read-ahead success for size 131072

1.264257s, 6.63521MB/s
Read-ahead success for size 262144

1.120804s, 7.48446MB/s
Read-ahead success for size 524288

1.311161s, 6.39785MB/s
Read-ahead success for size 1048576