Date: Wed, 15 Feb 2006 23:17:41 -0500 From: Mike Tancsa <mike@sentex.net> To: freebsd-stable@freebsd.org Subject: tcp throughput and net.inet.tcp.inflight.enable Message-ID: <6.2.3.4.0.20060215221957.076524f8@64.7.153.2>
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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@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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