== sanity test 101b: check stride-io mode read-ahead =========================================================================== 21:59:26 (1781661566)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

0.459174s, 18.2689MB/s
Read-ahead success for size 8192

0.512686s, 16.3621MB/s
Read-ahead success for size 16384

0.529772s, 15.8344MB/s
Read-ahead success for size 32768

0.519688s, 16.1416MB/s
Read-ahead success for size 65536

0.435258s, 19.2727MB/s
Read-ahead success for size 131072

0.428299s, 19.5859MB/s
Read-ahead success for size 262144

0.407345s, 20.5934MB/s
Read-ahead success for size 524288

0.390122s, 21.5025MB/s
Read-ahead success for size 1048576