== sanity test 101b: check stride-io mode read-ahead =========================================================================== 20:41:35 (1788914495)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.432478s, 5.85601MB/s
Read-ahead success for size 8192

2.418039s, 3.46918MB/s
Read-ahead success for size 16384

3.296177s, 2.54495MB/s
Read-ahead success for size 32768

2.480042s, 3.38245MB/s
Read-ahead success for size 65536

1.507925s, 5.56301MB/s
Read-ahead success for size 131072

1.500277s, 5.59137MB/s
Read-ahead success for size 262144

1.345511s, 6.23451MB/s
Read-ahead success for size 524288

1.468220s, 5.71345MB/s
Read-ahead success for size 1048576