== sanity test 101b: check stride-io mode read-ahead =========================================================================== 18:43:23 (1763336603)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

1.247700s, 6.72326MB/s
Read-ahead success for size 8192

1.115467s, 7.52027MB/s
Read-ahead success for size 16384

1.274230s, 6.58328MB/s
Read-ahead success for size 32768

0.963945s, 8.70237MB/s
Read-ahead success for size 65536

0.942310s, 8.90217MB/s
Read-ahead success for size 131072

0.894617s, 9.37676MB/s
Read-ahead success for size 262144

0.943347s, 8.89239MB/s
Read-ahead success for size 524288

0.737876s, 11.3686MB/s
Read-ahead success for size 1048576