tcp throughput and net.inet.tcp.inflight.enable

[Mike Tancsa]

For a local server, is there any reason why I would want to keep 
net.inet.tcp.inflight.enable on ?  I was kind of surprised at the 
difference in the results with it on and off


[backup3]# iperf -c 10.1.1.2
------------------------------------------------------------
Client connecting to 10.1.1.2, TCP port 5001
TCP window size: 65.0 KByte (default)
------------------------------------------------------------
[  3] local 10.2.2.2 port 59056 connected with 10.1.1.2 port 5001
[  3]  0.0-10.0 sec    396 MBytes    333 Mbits/sec
[backup3]# sysctl -w net.inet.tcp.inflight.enable=0
net.inet.tcp.inflight.enable: 1 -> 0
[backup3]# iperf -c 10.1.1.2
------------------------------------------------------------
Client connecting to 10.1.1.2, TCP port 5001
TCP window size: 65.0 KByte (default)
------------------------------------------------------------
[  3] local 10.2.2.2 port 64685 connected with 10.1.1.2 port 5001
[  3]  0.0-10.0 sec    788 MBytes    661 Mbits/sec
[backup3]#


         ---Mike


--------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike at sentex.net
Providing Internet since 1994                    www.sentex.net
Cambridge, Ontario Canada                         www.sentex.net/mike