== sanity test 101b: check stride-io mode read-ahead =========================================================================== 02:39:39 (1727764779)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

13.314145s, 0.630052MB/s
Read-ahead success for size 8192

11.403621s, 0.735609MB/s
Read-ahead success for size 16384

10.675437s, 0.785786MB/s
Read-ahead success for size 32768

9.650115s, 0.869275MB/s
Read-ahead success for size 65536

10.068447s, 0.833158MB/s
Read-ahead success for size 131072

9.929817s, 0.84479MB/s
Read-ahead success for size 262144

9.381571s, 0.894158MB/s
Read-ahead success for size 524288

8.986530s, 0.933465MB/s
Read-ahead success for size 1048576