== sanity test 101b: check stride-io mode read-ahead =========================================================================== 17:51:12 (1777499472)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.748163s, 4.79853MB/s
Read-ahead success for size 8192

1.723731s, 4.86654MB/s
Read-ahead success for size 16384

1.765186s, 4.75225MB/s
Read-ahead success for size 32768

1.656652s, 5.06359MB/s
Read-ahead success for size 65536

1.424866s, 5.8873MB/s
Read-ahead success for size 131072

1.472773s, 5.69579MB/s
Read-ahead success for size 262144

1.265757s, 6.62734MB/s
Read-ahead success for size 524288

1.233269s, 6.80193MB/s
Read-ahead success for size 1048576