== sanity test 101b: check stride-io mode read-ahead =========================================================================== 12:00:31 (1788192031)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.202533s, 3.80862MB/s
Read-ahead success for size 8192

2.932607s, 2.86046MB/s
Read-ahead success for size 16384

3.291640s, 2.54846MB/s
Read-ahead success for size 32768

2.432847s, 3.44806MB/s
Read-ahead success for size 65536

2.276122s, 3.68548MB/s
Read-ahead success for size 131072

1.609754s, 5.21111MB/s
Read-ahead success for size 262144

1.508329s, 5.56152MB/s
Read-ahead success for size 524288

1.332481s, 6.29548MB/s
Read-ahead success for size 1048576