== sanity test 101b: check stride-io mode read-ahead =========================================================================== 20:10:27 (1746144627)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.678731s, 12.3593MB/s
Read-ahead success for size 8192

0.661726s, 12.6769MB/s
Read-ahead success for size 16384

0.902426s, 9.29562MB/s
Read-ahead success for size 32768

0.592068s, 14.1683MB/s
Read-ahead success for size 65536

0.560018s, 14.9792MB/s
Read-ahead success for size 131072

0.547395s, 15.3246MB/s
Read-ahead success for size 262144

0.652861s, 12.849MB/s
Read-ahead success for size 524288

0.579555s, 14.4742MB/s
Read-ahead success for size 1048576