Comment 401 for bug 620074

Here test for same server as in my post here # 359
Same server but after turning port # 385

# dd if=/dev/zero of=testfile.1gb bs=1M count=1000

And during 'dd' i do vnstat 1:

 0 2 116 103632 507240 2016112 0 0 1324 16 1024 963 1 1 50 48
0
 1 2 116 101512 507484 2015736 0 0 1436 0 1314 1253 21 5 25 48
0
 0 2 116 103632 507240 2016112 0 0 1324 16 1024 963 1 1 50 48
0
 0 7 116 25208 496944 2105464 0 0 4 26272 2892 239 0 4 23 73
0
 0 9 116 21636 496972 2109568 0 0 32 21904 2150 339 0 2 8 90
0
 0 10 116 39888 481904 2105552 0 0 4 23544 1964 368 0 4 1 96
0
 0 9 116 49036 472984 2105016 0 0 8 18252 1730 728 0 3 0 97
0
 0 7 116 61700 459736 2105412 0 0 16 74176 2167 317 0 5 13 82
0
 0 7 116 71416 450576 2104272 0 0 24 8680 1322 237 0 4 16 80
0
 1 5 116 82772 439000 2106280 0 0 24 58616 1457 3332 0 7 5 88
0
 1 5 116 97224 424752 2105804 0 0 20 60164 848 286 0 6 24 70
0
 0 7 116 110700 409384 2107036 0 0 56 105584 884 397 0 9 15 76
 0
 2 5 116 116444 392304 2118776 0 0 288 95624 1096 424 1 11 10 78

As you can see there no stability iowait 90-99%, only sometimes ...