== sanity test 101b: check stride-io mode read-ahead =========================================================================== 04:50:21 (1743497421)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

2.786910s, 3.01MB/s
Read-ahead success for size 8192

2.407796s, 3.48394MB/s
Read-ahead success for size 16384

2.758548s, 3.04095MB/s
Read-ahead success for size 32768

1.915225s, 4.37996MB/s
Read-ahead success for size 65536

3.005661s, 2.79094MB/s
Read-ahead success for size 131072

1.748523s, 4.79754MB/s
Read-ahead success for size 262144

2.024471s, 4.1436MB/s
Read-ahead success for size 524288

2.132105s, 3.93443MB/s
Read-ahead success for size 1048576