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Date:      Fri, 14 Sep 2001 18:47:55 -0400
From:      David Hill <david@phobia.ms>
To:        Geoff Rehmet <geoff@illuminati.is.co.za>
Cc:        bmilekic@technokratis.com, current@FreeBSD.ORG
Subject:   Re: -current TCP performance hosed?
Message-ID:  <20010914184755.4b4a445d.david@phobia.ms>
In-Reply-To: <20010914234021.B52211@illuminati.is.co.za>
References:  <20010914215724.A52211@illuminati.is.co.za> <20010914161337.A30149@technokratis.com> <20010914234021.B52211@illuminati.is.co.za>

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On Fri, 14 Sep 2001 23:40:21 +0200
Geoff Rehmet <geoff@illuminati.is.co.za> wrote:

> On Fri, Sep 14, 2001 at 04:13:37PM -0400, Bosko Milekic wrote:
> > 
> > On Fri, Sep 14, 2001 at 09:57:24PM +0200, Geoff Rehmet wrote:
> > > I was just wondering if anyone has been experiencing problems with
> > > TCP performance on -current -- my box built on 11 Sept is dog slow -
> > > max 60kbps over 10baseT.  I'm going to try and revert to an older
> > > kernel and see if there is a difference.
> > 
> > 	No. Not here. Make sure that all the debugging options are OFF in
> > 	your kernel configuration file?
> Nope, no debug options, but I am getting loads of
> 
> microuptime() went backwards (29804.3839847 -> 29804.925730)
> microuptime() went backwards (29804.3839847 -> 29804.926005)
> microuptime() went backwards (29804.3839847 -> 29804.926316)
> microuptime() went backwards (29804.3839847 -> 29804.926741)
> microuptime() went backwards (29804.3839847 -> 29804.927119)
> microuptime() went backwards (29804.3839847 -> 29804.928361)
> microuptime() went backwards (29804.3839847 -> 29804.928867)
> microuptime() went backwards (29804.3839847 -> 29804.932863)
> microuptime() went backwards (29804.3839847 -> 29804.945770)
> microuptime() went backwards (29804.3839847 -> 29804.946271)
> microuptime() went backwards (29804.3839847 -> 29804.948524)
> microuptime() went backwards (29804.3839847 -> 29804.949926)
> microuptime() went backwards (29804.3839847 -> 29804.950331)
> microuptime() went backwards (29804.3839847 -> 29804.952237)
> microuptime() went backwards (29804.3839847 -> 29804.953419)
> microuptime() went backwards (29804.3839847 -> 29804.955314)
> microuptime() went backwards (29804.3839847 -> 29804.955781)
> 
> -- 
> Geoff Rehmet, Internet Solutions
> tel: +27-11-283-5462, fax: +27-11-283-5401 mobile: +27-83-292-5800
> email: geoffr@is.co.za 
> URL: http://www.is.co.za 
> 
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> 

Remove apm0 from your kernel.  recompile, reboot.

There is a bug with APM.

- David

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