From: bert hubert <ahu@ds9a.nl>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] measuring queueing delay using iproute2
Date: Wed, 27 Feb 2002 07:55:52 +0000 [thread overview]
Message-ID: <marc-lartc-101479659726516@msgid-missing> (raw)
In-Reply-To: <marc-lartc-101477184406327@msgid-missing>
On Tue, Feb 26, 2002 at 05:02:45PM -0800, Radhakrishnan Vijay wrote:
> I am using the tc functionality provided by iproute2
> to setup classes and queueing disciplines. I have a
> requirement to determine the queueing delay of each
> packet belonging to a particular class so that i can
> measure the average queueing delay over a time
> interval for a particular traffic class. I would be
> grateful if somebody could give me pointers on how i
> possibly can achieve this. I suspect that i would have
> to modify the source code of iproute2 , but am not too
> sure on what segment of the code i should be
> modifying.
Right now the actual delay is not measured by the kernel, so I don't see how
you would get at it. You could calculate the effective class bandwidth and
multiply that by the average qlength, but that would be pretty indirect.
Regards,
bert
--
http://www.PowerDNS.com Versatile DNS Software & Services
http://www.tk the dot in .tk
http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
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next prev parent reply other threads:[~2002-02-27 7:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-27 1:02 [LARTC] measuring queueing delay using iproute2 Radhakrishnan Vijay
2002-02-27 7:55 ` bert hubert [this message]
2002-02-27 8:55 ` Martin Devera
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