== sanity test 101b: check stride-io mode read-ahead =========================================================================== 21:39:56 (1763347196)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

2.087799s, 4.01792MB/s
Read-ahead success for size 8192

1.571814s, 5.3369MB/s
Read-ahead success for size 16384

1.732234s, 4.84265MB/s
Read-ahead success for size 32768

1.713557s, 4.89544MB/s
Read-ahead success for size 65536

1.469244s, 5.70947MB/s
Read-ahead success for size 131072

1.212040s, 6.92107MB/s
Read-ahead success for size 262144

1.366280s, 6.13974MB/s
Read-ahead success for size 524288

1.057867s, 7.92974MB/s
Read-ahead success for size 1048576