== sanity test 101b: check stride-io mode read-ahead =========================================================================== 17:47:08 (1746136028)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

1.822188s, 4.60359MB/s
Read-ahead success for size 8192

1.470576s, 5.7043MB/s
Read-ahead success for size 16384

1.221619s, 6.8668MB/s
Read-ahead success for size 32768

0.959085s, 8.74647MB/s
Read-ahead success for size 65536

0.885155s, 9.47699MB/s
Read-ahead success for size 131072

0.914828s, 9.1696MB/s
Read-ahead success for size 262144

0.849599s, 9.87361MB/s
Read-ahead success for size 524288

0.741225s, 11.3172MB/s
Read-ahead success for size 1048576