== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:33:08 (1788622388)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

1.736402s, 4.83103MB/s
Read-ahead success for size 8192

1.566049s, 5.35654MB/s
Read-ahead success for size 16384

1.826817s, 4.59193MB/s
Read-ahead success for size 32768

1.909702s, 4.39263MB/s
Read-ahead success for size 65536

1.638809s, 5.11872MB/s
Read-ahead success for size 131072

1.246704s, 6.72863MB/s
Read-ahead success for size 262144

1.393784s, 6.01859MB/s
Read-ahead success for size 524288

1.484563s, 5.65056MB/s
Read-ahead success for size 1048576