Date: Thu, 18 Sep 2003 13:26:09 -0400 From: Chuck Swiger <cswiger@mac.com> To: Antoine Jacoutot <ajacoutot@lphp.org> Cc: freebsd-questions@freebsd.org Subject: Re: tcp sendspace Message-ID: <3F69EAB1.1010203@mac.com> In-Reply-To: <3F69E2DF.6090301@lphp.org> References: <3F69E2DF.6090301@lphp.org>
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Antoine Jacoutot wrote: > I just wanted to know if setting: > net.inet.tcp.sendspace=65535 > > was a bad idea ? Probably not. > I'm not sure about all the consequences this could have, if any... Are you trying to solve a problem or tune network performance, or are you just asking what happens if you twiddle this particular knob? :-) There's a formula involving network latency and bandwidth which is relevant; that, plus the amount of traffic (how many connections) determines how much RAM the larger network buffer size could/will take up. You haven't told us what the machine is being used for, either-- network tuning a fileserver talking to clients on the LAN can be quite different than tuning a webserver feeding clients using 56K modems. -- -Chuck
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