== sanity test 101b: check stride-io mode read-ahead =========================================================================== 23:18:26 (1761103106)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.838027s, 10.0099MB/s
Read-ahead success for size 8192

0.847125s, 9.90244MB/s
Read-ahead success for size 16384

0.914189s, 9.17601MB/s
Read-ahead success for size 32768

0.685968s, 12.2289MB/s
Read-ahead success for size 65536

0.646306s, 12.9793MB/s
Read-ahead success for size 131072

0.584542s, 14.3507MB/s
Read-ahead success for size 262144

0.623009s, 13.4647MB/s
Read-ahead success for size 524288

0.519983s, 16.1325MB/s
Read-ahead success for size 1048576