== sanity test 101b: check stride-io mode read-ahead =========================================================================== 21:54:19 (1787795659)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.516621s, 5.53112MB/s
Read-ahead success for size 8192

1.973729s, 4.25013MB/s
Read-ahead success for size 16384

2.550440s, 3.28908MB/s
Read-ahead success for size 32768

2.183283s, 3.8422MB/s
Read-ahead success for size 65536

1.588373s, 5.28126MB/s
Read-ahead success for size 131072

1.634298s, 5.13285MB/s
Read-ahead success for size 262144

1.542776s, 5.43735MB/s
Read-ahead success for size 524288

1.428408s, 5.8727MB/s
Read-ahead success for size 1048576