== sanity test 101b: check stride-io mode read-ahead =========================================================================== 23:06:15 (1718852775)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

7.250718s, 1.15693MB/s
Read-ahead success for size 8192

5.846719s, 1.43475MB/s
Read-ahead success for size 16384

6.610240s, 1.26903MB/s
Read-ahead success for size 32768

5.806118s, 1.44479MB/s
Read-ahead success for size 65536

6.691903s, 1.25355MB/s
Read-ahead success for size 131072

6.165797s, 1.36051MB/s
Read-ahead success for size 262144

6.389563s, 1.31286MB/s
Read-ahead success for size 524288

6.735152s, 1.2455MB/s
Read-ahead success for size 1048576