== sanity test 101b: check stride-io mode read-ahead =========================================================================== 13:42:48 (1747849368)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.371226s, 22.597MB/s
Read-ahead success for size 8192

0.359145s, 23.3572MB/s
Read-ahead success for size 16384

0.373310s, 22.4709MB/s
Read-ahead success for size 32768

0.386591s, 21.6989MB/s
Read-ahead success for size 65536

0.327340s, 25.6266MB/s
Read-ahead success for size 131072

0.290545s, 28.872MB/s
Read-ahead success for size 262144

0.279671s, 29.9946MB/s
Read-ahead success for size 524288

0.277565s, 30.2221MB/s
Read-ahead success for size 1048576