== sanity test 101b: check stride-io mode read-ahead =========================================================================== 15:23:34 (1746127414)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.517752s, 16.202MB/s
Read-ahead success for size 8192

0.484212s, 17.3242MB/s
Read-ahead success for size 16384

0.579891s, 14.4658MB/s
Read-ahead success for size 32768

0.436752s, 19.2068MB/s
Read-ahead success for size 65536

0.387358s, 21.656MB/s
Read-ahead success for size 131072

0.364385s, 23.0213MB/s
Read-ahead success for size 262144

0.372552s, 22.5166MB/s
Read-ahead success for size 524288

0.400003s, 20.9714MB/s
Read-ahead success for size 1048576