netdev - Re: testing crazy stuff with iproute2

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Date:	Thu, 27 Dec 2007 23:25:53 +0200
From:	"Denys Fedoryshchenko" <denys@...p.net.lb>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: testing crazy stuff with iproute2

I will try to talk in lartc, about HTB i wrote another mail...
It is not acting as TBF with burst, it is even acting weird. Probably it is 
bug, when traffic get "blocked" cause of burst.

I will try to use lartc, if it is better to not "spam" my stuff here :-)

I didn't try yet PSPacer yet, as ESFQ things. If it is need i can do that and 
write feedback. I can use some of them in real environment after some pre-
testing.

On Thu, 27 Dec 2007 22:09:01 +0100, Jarek Poplawski wrote
> Denys Fedoryshchenko wrote, On 12/26/2007 05:57 AM:
> ....
> 
> > But i got few times in dmesg, during tests (probably when i set sfq 
instead 
> > pfifo, or etc).
> > 
> > [2090816.116000] htb: class 10003 isn't work conserving ?!
> > 
> > Is it a bug? And does it worth to do such "shaper"?
> 
> It's not a bug - htb simply wonders the sub-queue has packets,
> but doesn't dequeue any when expected. Probably htb + tbf isn't
> the most common configuration, but nothing wrong either. You
> should only consider htb could do similar (not exactly) job by
> itself, and each additional qdisc adds some latency, so it's only
> a question of priorities. But, hmm, ...don't you think this
> lartc.org's mailing list is really nice?
> 
> Regards,
> Jarek P.
> 
> PS: BTW, maybe I missed this, but I hoped you'd share here some
> impressions from testing this new PSPacer scheduler?
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--
Denys Fedoryshchenko
Technical Manager
Virtual ISP S.A.L.

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