From: Stef Coene <stef.coene@docum.org>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Re: LARTC digest, Vol 1 #907 - 2 msgs
Date: Thu, 05 Dec 2002 17:03:25 +0000 [thread overview]
Message-ID: <marc-lartc-103910790130027@msgid-missing> (raw)
In-Reply-To: <marc-lartc-103907054025475@msgid-missing>
On Thursday 05 December 2002 07:40, Brian Capouch wrote:
> > From: Stef Coene <stef.coene@docum.org>
> > ;
> >
> >>does it matter that the rate is being reported differently by each
> >>invocation of tc?
> >
> > I don't know exactly how the rate is calculated, but I don't think you
> > sh= ould=20
> > not trust it.
> >
> >>The upload speed of the first runs 252, 258, 254, etc.; on the second
> >>86, 150, 92, 78, etc.
> >
> > Is this reported by tc or by iperf ??
>
> By iperf.
>
> One little detail, and I guess this is the explaining fact but it's
> interesting to think about why: all the machines reported on here are
> using wireless access. The two which are working well have no jitter or
> packet loss, but the two that are acting up both have a fair amount of
> jitter, and about 6-8% packet loss because of their being marginal links.
>
> I'm assuming that is the explanation (I hadn't thoroughly tested the
> link quality before sending that other mail) but I wonder why. They
> show average throughput well above the rate limits I set when they are
> operating without HTB.
Maybe they are generating more bursts and it's possible that your htb setup
allows bursts. So at the long-term, they can get a higher rate.
Otherwise, I don't know.
Stef
--
stef.coene@docum.org
"Using Linux as bandwidth manager"
http://www.docum.org/
#lartc @ irc.oftc.net
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prev parent reply other threads:[~2002-12-05 17:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-05 6:40 [LARTC] Re: LARTC digest, Vol 1 #907 - 2 msgs Brian Capouch
2002-12-05 17:03 ` Stef Coene [this message]
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