== sanity test 101b: check stride-io mode read-ahead =========================================================================== 21:18:56 (1708827536)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.218056s, 38.47MB/s
Read-ahead success for size 8192

0.204426s, 41.0349MB/s
Read-ahead success for size 16384

0.195970s, 42.8056MB/s
Read-ahead success for size 32768

0.199156s, 42.1208MB/s
Read-ahead success for size 65536

0.193476s, 43.3574MB/s
Read-ahead success for size 131072

0.215409s, 38.9427MB/s
Read-ahead success for size 262144

0.246155s, 34.0786MB/s
Read-ahead success for size 524288

0.296812s, 28.2624MB/s
Read-ahead success for size 1048576