== sanity test 101b: check stride-io mode read-ahead =========================================================================== 08:37:14 (1787315834)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.510641s, 5.55301MB/s
Read-ahead success for size 8192

1.563674s, 5.36468MB/s
Read-ahead success for size 16384

1.748028s, 4.7989MB/s
Read-ahead success for size 32768

1.826848s, 4.59185MB/s
Read-ahead success for size 65536

1.453612s, 5.77087MB/s
Read-ahead success for size 131072

1.004242s, 8.35317MB/s
Read-ahead success for size 262144

1.143507s, 7.33586MB/s
Read-ahead success for size 524288

1.392447s, 6.02436MB/s
Read-ahead success for size 1048576