== sanity test 101b: check stride-io mode read-ahead =========================================================================== 16:30:37 (1722544237)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.064367s, 130.325MB/s
Read-ahead success for size 8192

0.064541s, 129.973MB/s
Read-ahead success for size 16384

0.065554s, 127.965MB/s
Read-ahead success for size 32768

0.066087s, 126.933MB/s
Read-ahead success for size 65536

0.065681s, 127.717MB/s
Read-ahead success for size 131072

0.066359s, 126.413MB/s
Read-ahead success for size 262144

0.060691s, 138.218MB/s
Read-ahead success for size 524288

0.067772s, 123.777MB/s
Read-ahead success for size 1048576