== sanity test 101b: check stride-io mode read-ahead =========================================================================== 12:22:35 (1772472155)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

1.375757s, 6.09745MB/s
Read-ahead success for size 8192

1.810487s, 4.63334MB/s
Read-ahead success for size 16384

1.709011s, 4.90846MB/s
Read-ahead success for size 32768

1.857321s, 4.51651MB/s
Read-ahead success for size 65536

1.524972s, 5.50083MB/s
Read-ahead success for size 131072

1.254927s, 6.68454MB/s
Read-ahead success for size 262144

1.059991s, 7.91385MB/s
Read-ahead success for size 524288

0.901646s, 9.30366MB/s
Read-ahead success for size 1048576