== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:28:07 (1772468887)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.774992s, 10.8241MB/s
Read-ahead success for size 8192

0.711727s, 11.7863MB/s
Read-ahead success for size 16384

0.793796s, 10.5677MB/s
Read-ahead success for size 32768

0.659207s, 12.7253MB/s
Read-ahead success for size 65536

0.629013s, 13.3361MB/s
Read-ahead success for size 131072

0.576633s, 14.5476MB/s
Read-ahead success for size 262144

0.569461s, 14.7308MB/s
Read-ahead success for size 524288

0.518508s, 16.1784MB/s
Read-ahead success for size 1048576