== sanity test 101b: check stride-io mode read-ahead =========================================================================== 01:41:18 (1789710078)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

0.581571s, 14.424MB/s
Read-ahead success for size 8192

0.617250s, 13.5903MB/s
Read-ahead success for size 16384

0.705568s, 11.8892MB/s
Read-ahead success for size 32768

0.694302s, 12.0821MB/s
Read-ahead success for size 65536

0.605801s, 13.8471MB/s
Read-ahead success for size 131072

0.549578s, 15.2637MB/s
Read-ahead success for size 262144

0.509175s, 16.4749MB/s
Read-ahead success for size 524288

0.512717s, 16.3611MB/s
Read-ahead success for size 1048576