== sanity test 101b: check stride-io mode read-ahead =========================================================================== 09:43:26 (1789134206)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

1.970099s, 4.25796MB/s
Read-ahead success for size 8192

2.055200s, 4.08165MB/s
Read-ahead success for size 16384

2.004818s, 4.18422MB/s
Read-ahead success for size 32768

1.816822s, 4.61719MB/s
Read-ahead success for size 65536

1.506617s, 5.56784MB/s
Read-ahead success for size 131072

1.597199s, 5.25207MB/s
Read-ahead success for size 262144

1.292215s, 6.49165MB/s
Read-ahead success for size 524288

1.046041s, 8.01939MB/s
Read-ahead success for size 1048576