netdev - Re: Packetlost when "tc qdisc del dev eth0 root"

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Message-ID: <20080115223254.GB2680@ami.dom.local>
Date:	Tue, 15 Jan 2008 23:32:54 +0100
From:	Jarek Poplawski <jarkao2@...il.com>
To:	slavon@...telecom.ru
Cc:	Patrick McHardy <kaber@...sh.net>, netdev@...r.kernel.org
Subject: Re: Packetlost when "tc qdisc del dev eth0 root"

On Wed, Jan 16, 2008 at 12:46:02AM +0300, slavon@...telecom.ru wrote:
...
> Hmmm... i found way to fix this for me... but its not look good
>
> Scheme look like:
> Root - prio bands 3 priomap 0 0 0 0 ....
> --- Class 1
> --- Class 2
> -------- Copy of all table (Last this qdisc be root)
> --- Class 3
> -------- Copy of all table (Last this qdisc be root)
>
> 2. Add filter to root - flowid all packets to class 2
> 3. Delete qdisc at class 3
> 4. Create all table on class 3 (~20k qdiscs and 20k classes)
> 5. Replace filter on root - flowid all packets to class 3
> 6. If need update go to step 3, but use class 2
>
> All work good... and packets not dropeed =)
> But i have above 45 k classes and qdiscs.... After some time i will need 
> patch to up max qdisc and classes more then 65k (> 0xfffe) =)))
> Also i have very bad TC commands performance then i have more then 10k rules.

Right! I get your idea (not all details...), and this really shows
there is needed something simpler for this. 

Thanks,
Jarek P.
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