== sanity test 101b: check stride-io mode read-ahead =========================================================================== 17:19:49 (1787865589)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.373054s, 3.53494MB/s
Read-ahead success for size 8192

2.190212s, 3.83004MB/s
Read-ahead success for size 16384

2.736108s, 3.06589MB/s
Read-ahead success for size 32768

2.336205s, 3.5907MB/s
Read-ahead success for size 65536

1.557662s, 5.38538MB/s
Read-ahead success for size 131072

1.348994s, 6.21842MB/s
Read-ahead success for size 262144

1.383518s, 6.06324MB/s
Read-ahead success for size 524288

1.343702s, 6.24291MB/s
Read-ahead success for size 1048576