== sanity test 101b: check stride-io mode read-ahead =========================================================================== 04:58:47 (1769075927)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

1.423093s, 5.89463MB/s
Read-ahead success for size 8192

1.541828s, 5.44069MB/s
Read-ahead success for size 16384

1.348134s, 6.22238MB/s
Read-ahead success for size 32768

1.551824s, 5.40564MB/s
Read-ahead success for size 65536

1.410546s, 5.94706MB/s
Read-ahead success for size 131072

1.426624s, 5.88004MB/s
Read-ahead success for size 262144

1.279668s, 6.5553MB/s
Read-ahead success for size 524288

0.840457s, 9.98101MB/s
Read-ahead success for size 1048576