== sanity test 101b: check stride-io mode read-ahead =========================================================================== 05:42:38 (1715334158)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

4.353912s, 1.92668MB/s
Read-ahead success for size 8192

4.262555s, 1.96798MB/s
Read-ahead success for size 16384

4.642686s, 1.80684MB/s
Read-ahead success for size 32768

3.976435s, 2.10958MB/s
Read-ahead success for size 65536

3.746279s, 2.23918MB/s
Read-ahead success for size 131072

3.351076s, 2.50326MB/s
Read-ahead success for size 262144

3.325469s, 2.52253MB/s
Read-ahead success for size 524288

2.947525s, 2.84598MB/s
Read-ahead success for size 1048576