== sanity test 101b: check stride-io mode read-ahead =========================================================================== 09:30:42 (1769092242)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

0.631328s, 13.2872MB/s
Read-ahead success for size 8192

0.581947s, 14.4147MB/s
Read-ahead success for size 16384

0.611226s, 13.7242MB/s
Read-ahead success for size 32768

0.536910s, 15.6239MB/s
Read-ahead success for size 65536

0.482165s, 17.3978MB/s
Read-ahead success for size 131072

0.452856s, 18.5238MB/s
Read-ahead success for size 262144

0.454525s, 18.4558MB/s
Read-ahead success for size 524288

0.451334s, 18.5863MB/s
Read-ahead success for size 1048576