== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:16:01 (1776870961)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

0.432661s, 19.3884MB/s
Read-ahead success for size 8192

0.458918s, 18.2791MB/s
Read-ahead success for size 16384

0.545380s, 15.3812MB/s
Read-ahead success for size 32768

0.488917s, 17.1575MB/s
Read-ahead success for size 65536

0.463250s, 18.1082MB/s
Read-ahead success for size 131072

0.433467s, 19.3524MB/s
Read-ahead success for size 262144

0.379228s, 22.1202MB/s
Read-ahead success for size 524288

0.399810s, 20.9815MB/s
Read-ahead success for size 1048576