== sanity test 101b: check stride-io mode read-ahead =========================================================================== 08:57:09 (1789304229)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

1.346360s, 6.23058MB/s
Read-ahead success for size 8192

1.105363s, 7.58901MB/s
Read-ahead success for size 16384

0.997340s, 8.41098MB/s
Read-ahead success for size 32768

1.172017s, 7.15741MB/s
Read-ahead success for size 65536

1.695309s, 4.94813MB/s
Read-ahead success for size 131072

1.298861s, 6.45843MB/s
Read-ahead success for size 262144

1.161214s, 7.224MB/s
Read-ahead success for size 524288

1.009424s, 8.31029MB/s
Read-ahead success for size 1048576