== sanity test 101b: check stride-io mode read-ahead =========================================================================== 08:51:57 (1724763117)
striped dir -i1 -c2 -H crush2 /mnt/lustre/d101b.sanity

9.655169s, 0.86882MB/s
Read-ahead success for size 8192

8.058138s, 1.04101MB/s
Read-ahead success for size 16384

7.075673s, 1.18556MB/s
Read-ahead success for size 32768

7.714522s, 1.08738MB/s
Read-ahead success for size 65536

6.662819s, 1.25902MB/s
Read-ahead success for size 131072

7.353978s, 1.14069MB/s
Read-ahead success for size 262144

7.718897s, 1.08676MB/s
Read-ahead success for size 524288

6.764988s, 1.24MB/s
Read-ahead success for size 1048576