== sanity test 101b: check stride-io mode read-ahead =========================================================================== 08:07:37 (1786018057)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.954574s, 2.83919MB/s
Read-ahead success for size 8192

3.022246s, 2.77562MB/s
Read-ahead success for size 16384

3.445539s, 2.43463MB/s
Read-ahead success for size 32768

3.534459s, 2.37338MB/s
Read-ahead success for size 65536

1.790109s, 4.68609MB/s
Read-ahead success for size 131072

2.378005s, 3.52758MB/s
Read-ahead success for size 262144

2.674875s, 3.13607MB/s
Read-ahead success for size 524288

2.374489s, 3.53281MB/s
Read-ahead success for size 1048576