== sanity test 101b: check stride-io mode read-ahead =========================================================================== 22:44:29 (1789267469)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.095763s, 4.00265MB/s
Read-ahead success for size 8192

1.884014s, 4.45252MB/s
Read-ahead success for size 16384

2.135548s, 3.92808MB/s
Read-ahead success for size 32768

1.885946s, 4.44796MB/s
Read-ahead success for size 65536

1.501164s, 5.58807MB/s
Read-ahead success for size 131072

1.563647s, 5.36477MB/s
Read-ahead success for size 262144

1.659691s, 5.05432MB/s
Read-ahead success for size 524288

1.329838s, 6.30799MB/s
Read-ahead success for size 1048576