== sanity test 101b: check stride-io mode read-ahead =========================================================================== 10:31:40 (1749479500)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.362868s, 23.1175MB/s
Read-ahead success for size 8192

0.374072s, 22.4251MB/s
Read-ahead success for size 16384

0.375603s, 22.3337MB/s
Read-ahead success for size 32768

0.357249s, 23.4811MB/s
Read-ahead success for size 65536

0.311842s, 26.9002MB/s
Read-ahead success for size 131072

0.289558s, 28.9704MB/s
Read-ahead success for size 262144

0.272409s, 30.7942MB/s
Read-ahead success for size 524288

0.274015s, 30.6137MB/s
Read-ahead success for size 1048576