a little performance test, before I rest

[Dave Taht]

I can fire off 10 streams or 1 stream of iperf, and get 50Mbit/sec at
100% of cpu in use on the router.

It is really slow to start the second and later streams. It is nice to
see the port
range restrictions in operation on the server side....

[ 15] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1035
[  4] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1036
[  5] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1037
[  6] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1038
[  7] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1039
[  8] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1040
[  9] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1041
[ 10] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1042
[ 11] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1043
[ 12] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1044

[ 15]  0.0-61.1 sec    105 MBytes  14.5 Mbits/sec
[  4]  0.0-70.7 sec  51.4 MBytes  6.09 Mbits/sec
[  5]  0.0-71.5 sec  44.9 MBytes  5.27 Mbits/sec
[  6]  0.0-75.0 sec  37.0 MBytes  4.14 Mbits/sec
[  7]  0.0-75.3 sec  37.4 MBytes  4.16 Mbits/sec
[  8]  0.0-75.4 sec  38.0 MBytes  4.23 Mbits/sec
[  9]  0.0-77.8 sec  32.5 MBytes  3.50 Mbits/sec
[ 10]  0.0-77.8 sec  35.9 MBytes  3.87 Mbits/sec
[ 11]  0.0-79.2 sec  42.5 MBytes  4.50 Mbits/sec
[ 12]  0.0-79.4 sec  47.9 MBytes  5.06 Mbits/sec
[SUM]  0.0-79.4 sec    473 MBytes  50.0 Mbits/sec

[ 13] local 149.20.54.82 port 5001 connected with 149.20.74.65 port 1045
[ 13]  0.0-60.1 sec    370 MBytes  51.6 Mbits/sec

For comparison, I typically get 260Mbit for multiple streams, and
220Mbit for a single stream, on a more conventional setup,
on ipv4, ipv6 is generally slightly less.

-- 
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://www.bufferbloat.net