== sanity test 101b: check stride-io mode read-ahead =========================================================================== 23:25:00 (1746156300)
striped dir -i1 -c2 -H crush2 /mnt/lustre/d101b.sanity

1.096966s, 7.6471MB/s
Read-ahead success for size 8192

0.907045s, 9.24828MB/s
Read-ahead success for size 16384

0.947121s, 8.85695MB/s
Read-ahead success for size 32768

0.802816s, 10.449MB/s
Read-ahead success for size 65536

0.763166s, 10.9919MB/s
Read-ahead success for size 131072

0.638341s, 13.1413MB/s
Read-ahead success for size 262144

0.727264s, 11.5345MB/s
Read-ahead success for size 524288

0.582312s, 14.4057MB/s
Read-ahead success for size 1048576