Re: [LARTC] [LONG] Weird problem with HTB using htb.init

[Stef Coene <stef.coene@docum.org>]

On Sunday 16 March 2003 23:29, Ricardo Jorge da Fonseca Marques Ferreira 
wrote:
> On Sunday 16 March 2003 22:13, Stef Coene wrote:
> > You have a sfq qdisc attached to your parent class.  That's not possible.
> > You can add the sfq qdisc, but if you add a child class, the sfq qdisc is
> > removed.
>
> Hmm, i removed it. Still timeouts, but it wouldnt matter as it would be
> removed anyway.
>
> > I looked at your tc stats, and I found it strange that you have negative
> > tokens and ctokens.  But I don't think this is causing the http timeouts.
> > If you have these timeouts, is your link havely used?  If yes, you can
> > try to prorize ACKS/SYN packets.
>
> I've seen it happening when i'm limiting emule traffic to 150kbit/s
> download & 30kbit/s upload and the emule program itself showed it was not
> above those limits through its graphs. One thing with emule is it creates
> ALOT of connections. I have alot of downloads on queue and some of those
> have more than 1500 sources. Could it be that the huge number of
> connections is confusing some part of Linux QoS ?
Mhh.  It can be.  If you add a sfq qdisc, each connection will create a new 
entry in the hash key.  But I don't know what happens if the hash key is 
full.  If all other connections end up in 1 hash key, it's possible that you 
get timeouts.

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net

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