== sanity test 101b: check stride-io mode read-ahead =========================================================================== 05:01:33 (1788253293)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.048600s, 7.99982MB/s
Read-ahead success for size 8192

1.879961s, 4.46212MB/s
Read-ahead success for size 16384

1.661243s, 5.0496MB/s
Read-ahead success for size 32768

1.916613s, 4.37679MB/s
Read-ahead success for size 65536

1.519506s, 5.52062MB/s
Read-ahead success for size 131072

1.169993s, 7.16979MB/s
Read-ahead success for size 262144

0.855304s, 9.80775MB/s
Read-ahead success for size 524288

1.434116s, 5.84932MB/s
Read-ahead success for size 1048576