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Date:      Tue, 29 May 2001 17:01:35 -0400 (EDT)
From:      Dru <genisis@istar.ca>
To:        Drew Tomlinson <drewt@writeme.com>
Cc:        "'Paul Herman'" <pherman@frenchfries.net>, Bill Moran <wmoran@iowna.com>, <freebsd-questions@FreeBSD.ORG>
Subject:   RE: FreeBSD - Windows '98 performance
Message-ID:  <20010529170034.G9603-100000@x1-6-00-50-ba-de-36-33.kico1.on.home.com>
In-Reply-To: <BA5D0CE1CBB2D411B6AA00A0CC3F02390AFA1D@ldcmsx01.lc.ca.gov>

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On Tue, 29 May 2001, Drew Tomlinson wrote:

> > -----Original Message-----
> > From: Paul Herman [mailto:pherman@frenchfries.net]
> > Sent: Friday, May 25, 2001 7:05 AM
> > To: Bill Moran
> > Cc: Drew Tomlinson; freebsd-questions@FreeBSD.ORG
> > Subject: Re: FreeBSD - Windows '98 performance
> >
> >
> > On Fri, 25 May 2001, Bill Moran wrote:
> >
> > > Drew Tomlinson wrote:
> > > >
> > > > 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?
> >
> > Delayed ACK is good for links that have large RTTs, and you plan on
> > receiving more data than serving.  Delayed ACKs got a little
> > improvement before 4.3-RELEASE, but I still think for LANs it isn't
> > necessary and it'd be OK to turn it off.
>
> Thank you both for the info.  I checked the net.inet.tcp.delayed_ack and it
> already is set to "1".  Are you saying I can set this to "0"?

Yup. As the superuser, just do a

sysctl -w net.inet.tcp.delayed_ack=0

Dru


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