== sanity test 101b: check stride-io mode read-ahead =========================================================================== 18:34:15 (1736984055)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

0.087492s, 95.8786MB/s
Read-ahead success for size 8192

0.078738s, 106.538MB/s
Read-ahead success for size 16384

0.084525s, 99.2441MB/s
Read-ahead success for size 32768

0.103714s, 80.8821MB/s
Read-ahead success for size 65536

0.096334s, 87.0784MB/s
Read-ahead success for size 131072

0.099172s, 84.5865MB/s
Read-ahead success for size 262144

0.104116s, 80.5698MB/s
Read-ahead success for size 524288

0.094163s, 89.086MB/s
Read-ahead success for size 1048576