== sanity test 101b: check stride-io mode read-ahead =========================================================================== 18:18:35 (1784758715)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.475747s, 5.68431MB/s
Read-ahead success for size 8192

1.637271s, 5.12353MB/s
Read-ahead success for size 16384

2.134680s, 3.92968MB/s
Read-ahead success for size 32768

1.657397s, 5.06131MB/s
Read-ahead success for size 65536

1.480414s, 5.66639MB/s
Read-ahead success for size 131072

1.682503s, 4.98579MB/s
Read-ahead success for size 262144

1.706754s, 4.91495MB/s
Read-ahead success for size 524288

1.867024s, 4.49304MB/s
Read-ahead success for size 1048576