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From: Antonios Chalkiopoulos <alg0@iit.demokritos.gr>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] tc monitoring
Date: Thu, 30 Sep 2004 12:44:15 +0000	[thread overview]
Message-ID: <200409301544.15892.alg0@iit.demokritos.gr> (raw)
In-Reply-To: <200409301431.13267.alg0@iit.demokritos.gr>

On Thursday 30 September 2004 14:59, you wrote:
> Am Thursday 30 September 2004 13:31 schrieb Antonios Chalkiopoulos:
> > So is there a way to use the tc command and manage to get usefull
> > information about which qdisc is parent and which is a leaf?
>
> Well, if there is no child then it is a leaf. You have to do a bit of
> parsing there... tc is not really useful at all for that kind of stuff.
>
> I had the same problem, I wrote a script to create graphs like
> this one http://www.metamorpher.de/files/fairnat_ipp2p.png (big image).
>
> The script is http://www.metamorpher.de/files/tc-graph.pl
> It creates a graph description which can be used by GraphViz to visualize.
>
> Andreas

Nice work Andrea! :) The only limitation i noticed so far is that it can not 
properly parse the virtual channels of GRED qdisc. GRED is a tricky qdisc as 
it can contain 1..16 RED qdisc as virtual channels. It shouldn't be too 
complex to implement that feature as the output is straight-forward

qdisc gred 805f:
DP:1 (prio 8) Average Queue 0b Measured Queue 0b
        Packet drops: 0 (forced 0 early 0)
        Packet totals: 0 (bytes 0)  ewma 3 Plog 25 Scell_log 12
DP:2 (prio 8) Average Queue 36110b Measured Queue 35428b
        Packet drops: 517 (forced 0 early 517)
        Packet totals: 14128 (bytes 14721376)  ewma 3 Plog 20 Scell_log 12
Sent 14182662 bytes 13611 pkts (dropped 517, overlimits 517 requeues 0)

Thanks , Antonios Chalkiopoulos
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  parent reply	other threads:[~2004-09-30 12:44 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-30 11:31 [LARTC] tc monitoring Antonios Chalkiopoulos
2004-09-30 11:59 ` Andreas Klauer
2004-09-30 12:02 ` Thomas Graf
2004-09-30 12:44 ` Antonios Chalkiopoulos [this message]
2004-09-30 13:06 ` Andreas Klauer
2004-09-30 13:49 ` Francisco Pereira
2004-09-30 14:37 ` Jason Boxman
2004-09-30 15:33 ` Michael S. Kazmier

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