== sanity test 101b: check stride-io mode read-ahead =========================================================================== 16:52:17 (1764107537)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.560329s, 14.9709MB/s
Read-ahead success for size 8192

0.544172s, 15.4154MB/s
Read-ahead success for size 16384

0.621494s, 13.4975MB/s
Read-ahead success for size 32768

0.640241s, 13.1023MB/s
Read-ahead success for size 65536

0.600974s, 13.9584MB/s
Read-ahead success for size 131072

0.533557s, 15.722MB/s
Read-ahead success for size 262144

0.468905s, 17.8898MB/s
Read-ahead success for size 524288

0.445213s, 18.8418MB/s
Read-ahead success for size 1048576