== sanity test 101b: check stride-io mode read-ahead =========================================================================== 10:15:42 (1788876942)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

0.880841s, 9.52341MB/s
Read-ahead success for size 8192

0.945270s, 8.8743MB/s
Read-ahead success for size 16384

1.211756s, 6.92269MB/s
Read-ahead success for size 32768

1.074391s, 7.80778MB/s
Read-ahead success for size 65536

0.945376s, 8.8733MB/s
Read-ahead success for size 131072

0.846122s, 9.91418MB/s
Read-ahead success for size 262144

0.818359s, 10.2505MB/s
Read-ahead success for size 524288

0.746816s, 11.2325MB/s
Read-ahead success for size 1048576