== sanity test 101b: check stride-io mode read-ahead =========================================================================== 07:55:48 (1787831748)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.861211s, 4.50707MB/s
Read-ahead success for size 8192

1.838573s, 4.56256MB/s
Read-ahead success for size 16384

1.927503s, 4.35206MB/s
Read-ahead success for size 32768

1.600775s, 5.24034MB/s
Read-ahead success for size 65536

1.567517s, 5.35153MB/s
Read-ahead success for size 131072

1.419675s, 5.90882MB/s
Read-ahead success for size 262144

1.354167s, 6.19466MB/s
Read-ahead success for size 524288

1.443646s, 5.81071MB/s
Read-ahead success for size 1048576