== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:02:12 (1714402932)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

31.905752s, 0.262918MB/s
Read-ahead success for size 8192

24.256532s, 0.345829MB/s
Read-ahead success for size 16384

11.058022s, 0.758599MB/s
Read-ahead success for size 32768

33.577540s, 0.249828MB/s
Read-ahead success for size 65536

17.296506s, 0.484989MB/s
Read-ahead success for size 131072

9.916220s, 0.845948MB/s
Read-ahead success for size 262144

22.321683s, 0.375805MB/s
Read-ahead success for size 524288

9.125189s, 0.91928MB/s
Read-ahead success for size 1048576