== sanity test 101b: check stride-io mode read-ahead =========================================================================== 07:21:55 (1787138515)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.037587s, 4.11693MB/s
Read-ahead success for size 8192

1.979034s, 4.23874MB/s
Read-ahead success for size 16384

1.561998s, 5.37043MB/s
Read-ahead success for size 32768

1.898732s, 4.41801MB/s
Read-ahead success for size 65536

1.610477s, 5.20877MB/s
Read-ahead success for size 131072

1.742740s, 4.81346MB/s
Read-ahead success for size 262144

1.392579s, 6.02379MB/s
Read-ahead success for size 524288

1.497071s, 5.60335MB/s
Read-ahead success for size 1048576