== sanity test 101b: check stride-io mode read-ahead =========================================================================== 07:30:48 (1787830248)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

0.797067s, 10.5243MB/s
Read-ahead success for size 8192

0.793230s, 10.5753MB/s
Read-ahead success for size 16384

1.022612s, 8.20312MB/s
Read-ahead success for size 32768

0.905708s, 9.26193MB/s
Read-ahead success for size 65536

0.692664s, 12.1106MB/s
Read-ahead success for size 131072

0.598140s, 14.0245MB/s
Read-ahead success for size 262144

0.577390s, 14.5285MB/s
Read-ahead success for size 524288

0.534613s, 15.691MB/s
Read-ahead success for size 1048576