Date: Fri, 1 Oct 2004 21:00:52 +0200 From: Max Laier <max@love2party.net> To: freebsd-current@freebsd.org Cc: "Alexander S. Usov" <A.S.Usov@kvi.nl> Subject: Re: ALTQ/pf troubles Message-ID: <200410012101.01067.max@love2party.net> In-Reply-To: <200410011555.00828.A.S.Usov@kvi.nl> References: <200409272240.00356.A.S.Usov@kvi.nl> <20041001132843.GG997@green.homeunix.org> <200410011555.00828.A.S.Usov@kvi.nl>
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On Friday 01 October 2004 15:55, Alexander S. Usov wrote:
> On Friday 01 October 2004 15:28, Brian Fundakowski Feldman wrote:
> > On Mon, Sep 27, 2004 at 10:40:00PM +0200, Alexander S. Usov wrote:
> > > Hello !!
> > > Just enabling the queueing on the interface with bandwidth =3D=3D DSL
> > > bandwidth results in the appox. factor of 2 drop in the speed of the
> > > outgoing transfers.
> > >
> > > >From my experiments I got an impression that to make this slow-down
> > >
> > > away I have to specify the bandwith around 700Kb, which is twice bigg=
er
> > > than real.
> >
> > Are you telling ALTQ to process _incoming_ packets?
>
> According to the pf manuals it should process only outgoing packets.
> And I believe it's the case as the incoming rate doesn't depends on
> queieing state.
>
> Just did an experiment adding only this 2 lines:
> =3D=3D=3D
> altq on $ext priq bandwidth 350Kb queue {q}
> queue q priority 1 priq(default)
> =3D=3D=3D
> and no queue statements in the filtering rules.
>
> If I understand the logick of the pf right, it means to create an outbound
> queue on $ext with bandwith 350Kb and put all outgoing traffic into it (d=
ue
> to the (default) statement).
>
> This results in the outgoing transfer speed of appox. 18KB/s, and incoming
> is unaffected and is approx. 117KB/s.
>
> Increasing bandwith in the altq rule to 700Kb, results in the upload speed
> of approx. 30-34 KB/s.
Hmmm ... you realize that ALTQ takes *BIT* per second?
> Is it a good idea to check the behavior of the ruleset with OpenBSD?
=46irst of all a look at your queue statistics would be helpful:
$ pfctl -vvsq
how many packets are being dropped? Which queues do the packets end up in?
If you can easily check OpenBSD behavior, that'd be a good check as well.
=2D-=20
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