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Date:      Fri, 25 May 2001 09:45:31 -0400
From:      Bill Moran <wmoran@iowna.com>
To:        Drew Tomlinson <drewt@writeme.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD - Windows '98 performance
Message-ID:  <3B0E61FB.3C20E62A@iowna.com>
References:  <BA5D0CE1CBB2D411B6AA00A0CC3F02390AFA19@ldcmsx01.lc.ca.gov>

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Drew Tomlinson wrote:
> 
> >
> > Have you tried changing the value of
> > net.inet.tcp.delayed_ack? I've seen
> > this elsewhere recommended as a way to improve performance.
> 
> I'm pretty green here and have no idea what this is.  Could you point me to
> a URL, man page, etc. that will expand on this?

Sorry. It's a sysctl value. These are "kernel variables". Rather
advanced stuff, but a method for tweaking kernel behaviour on the fly.

man sysctl should give you a basic overview of what is going on with the
sysctl command. There are a lot of sysctl variables, and I don't know of
any comprehensive guide as to what each one does, but setting
net.inet.tcp.delayed_ack=1 was what I saw recommended as a solution for
poor performance.

-Bill

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