== sanity test 101b: check stride-io mode read-ahead =========================================================================== 05:33:02 (1734431582)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

10.632533s, 0.788957MB/s
Read-ahead success for size 8192

10.306852s, 0.813887MB/s
Read-ahead success for size 16384

9.142479s, 0.917542MB/s
Read-ahead success for size 32768

9.158634s, 0.915923MB/s
Read-ahead success for size 65536

8.504731s, 0.986346MB/s
Read-ahead success for size 131072

9.253414s, 0.906542MB/s
Read-ahead success for size 262144

9.224197s, 0.909413MB/s
Read-ahead success for size 524288

8.801933s, 0.953042MB/s
Read-ahead success for size 1048576