== sanity test 101b: check stride-io mode read-ahead =========================================================================== 19:26:08 (1763339168)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

1.403718s, 5.97599MB/s
Read-ahead success for size 8192

1.356390s, 6.18451MB/s
Read-ahead success for size 16384

1.327880s, 6.31729MB/s
Read-ahead success for size 32768

0.965436s, 8.68893MB/s
Read-ahead success for size 65536

1.041975s, 8.05068MB/s
Read-ahead success for size 131072

0.988507s, 8.48614MB/s
Read-ahead success for size 262144

0.761572s, 11.0149MB/s
Read-ahead success for size 524288

1.243664s, 6.74508MB/s
Read-ahead success for size 1048576