== sanity test 101b: check stride-io mode read-ahead =========================================================================== 07:58:28 (1742903908)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.374083s, 22.4245MB/s
Read-ahead success for size 8192

0.367790s, 22.8081MB/s
Read-ahead success for size 16384

0.409008s, 20.5096MB/s
Read-ahead success for size 32768

0.386119s, 21.7254MB/s
Read-ahead success for size 65536

0.340734s, 24.6192MB/s
Read-ahead success for size 131072

0.283239s, 29.6167MB/s
Read-ahead success for size 262144

0.265312s, 31.6179MB/s
Read-ahead success for size 524288

0.279911s, 29.9688MB/s
Read-ahead success for size 1048576