== sanity test 101b: check stride-io mode read-ahead =========================================================================== 18:27:00 (1736983620)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.061488s, 136.427MB/s
Read-ahead success for size 8192

0.061026s, 137.46MB/s
Read-ahead success for size 16384

0.053140s, 157.859MB/s
Read-ahead success for size 32768

0.051131s, 164.061MB/s
Read-ahead success for size 65536

0.051265s, 163.632MB/s
Read-ahead success for size 131072

0.053109s, 157.951MB/s
Read-ahead success for size 262144

0.054002s, 155.339MB/s
Read-ahead success for size 524288

0.054652s, 153.491MB/s
Read-ahead success for size 1048576