== sanity test 101b: check stride-io mode read-ahead =========================================================================== 19:54:06 (1746143646)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

1.087266s, 7.71532MB/s
Read-ahead success for size 8192

1.089144s, 7.70202MB/s
Read-ahead success for size 16384

1.203431s, 6.97058MB/s
Read-ahead success for size 32768

0.940095s, 8.92315MB/s
Read-ahead success for size 65536

0.734656s, 11.4184MB/s
Read-ahead success for size 131072

0.735654s, 11.4029MB/s
Read-ahead success for size 262144

0.666809s, 12.5802MB/s
Read-ahead success for size 524288

0.694742s, 12.0744MB/s
Read-ahead success for size 1048576