[Bug 894608] Re: Implementing a bridge slows 10G network

[michael imelfort]

Oops sorry, Here tis'

whitlam:~$ iperf -sm -w 80k
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size:   160 KByte (WARNING: requested 80.0 KByte)
------------------------------------------------------------
[  4] local 10.168.48.14 port 5001 connected with 10.168.48.13 port 38575
------------------------------------------------------------
Client connecting to 10.168.48.13, TCP port 5001
TCP window size:   160 KByte (WARNING: requested 80.0 KByte)
------------------------------------------------------------
[  6] local 10.168.48.14 port 49025 connected with 10.168.48.13 port 5001
Waiting for server threads to complete. Interrupt again to force quit.
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-10.0 sec  5.52 GBytes  4.74 Gbits/sec
[  4] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
[  6]  0.0-10.0 sec  3.46 GBytes  2.97 Gbits/sec
[  6] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
whitlam:~$ iperf -sm
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 10.168.48.14 port 5001 connected with 10.168.48.13 port 38576
------------------------------------------------------------
Client connecting to 10.168.48.13, TCP port 5001
TCP window size:   259 KByte (default)
------------------------------------------------------------
[  6] local 10.168.48.14 port 49026 connected with 10.168.48.13 port 5001
Waiting for server threads to complete. Interrupt again to force quit.
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-10.0 sec  1.71 GBytes  1.47 Gbits/sec
[  4] MSS size 1448 bytes (MTU 1500 bytes, ethernet)
[  6]  0.0-10.0 sec  5.40 GBytes  4.64 Gbits/sec
[  6] MSS size 1448 bytes (MTU 1500 bytes, ethernet)


fraser:~$ iperf -c whitlam -d -w 80k
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size:   160 KByte (WARNING: requested 80.0 KByte)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to whitlam, TCP port 5001
TCP window size:   160 KByte (WARNING: requested 80.0 KByte)
------------------------------------------------------------
[  5] local 10.168.48.13 port 38575 connected with 10.168.48.14 port 5001
[  4] local 10.168.48.13 port 5001 connected with 10.168.48.14 port 49025
[ ID] Interval       Transfer     Bandwidth
[  5]  0.0-10.0 sec  5.52 GBytes  4.74 Gbits/sec
[  4]  0.0-10.0 sec  3.46 GBytes  2.97 Gbits/sec
fraser:~$ iperf -c whitlam -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to whitlam, TCP port 5001
TCP window size:   279 KByte (default)
------------------------------------------------------------
[  5] local 10.168.48.13 port 38576 connected with 10.168.48.14 port 5001
[  4] local 10.168.48.13 port 5001 connected with 10.168.48.14 port 49026
[ ID] Interval       Transfer     Bandwidth
[  5]  0.0-10.0 sec  1.71 GBytes  1.47 Gbits/sec
[  4]  0.0-10.0 sec  5.40 GBytes  4.63 Gbits/sec

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https://bugs.launchpad.net/bugs/894608

Title:
  Implementing a bridge slows 10G network

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