Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 5 Nov 2000 14:24:33 -0800
From:      Alfred Perlstein <bright@wintelcom.net>
To:        David Greenman <dg@root.com>
Cc:        freebsd-net@FreeBSD.ORG
Subject:   Re: tcp sendspace/recvspace
Message-ID:  <20001105142433.K5112@fw.wintelcom.net>
In-Reply-To: <200011052202.OAA24207@implode.root.com>; from dg@root.com on Sun, Nov 05, 2000 at 02:02:44PM -0800
References:  <200011052202.OAA24207@implode.root.com>

next in thread | previous in thread | raw e-mail | index | archive | help
* David Greenman <dg@root.com> [001105 14:05] wrote:
>    I've been messing around with the net.inet.tcp.sendspace and 
> net.inet.tcp.recvspace parameters on ftp.freesoftware.com and have found
> that there is a significant performance improvement when increasing these
> to 32768 bytes. Apparantly there are enough systems out there with higher
> window maxes that it really does make a difference. By significant 
> improvement, I mean about a average of a 20% increase in Mbps per user,
> and this was just the change over a 30 minute period with lots of connections
> still using the old 16K values.
>    Any objections to increasing the defaults in FreeBSD to 32K?

No objection, just a suggestion that perhaps it should be set when
booting and determined by the amount of ram in the machine.  Just
setting it 32k would also work. :)

-- 
-Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org]
"I have the heart of a child; I keep it in a jar on my desk."


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20001105142433.K5112>