From: Andy Furniss <andy.furniss@dsl.pipex.com>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] bandwidth control on htb
Date: Mon, 30 May 2005 15:08:29 +0000 [thread overview]
Message-ID: <429B2C6D.6000605@dsl.pipex.com> (raw)
In-Reply-To: <103339c8050528083767284c8b@mail.gmail.com>
Fatih Düzova wrote:
> Hi,
> I implemented queues on some ports with htb by filtering. and to have
> a constant bw, i defined rate and ceil the same. But while watching
> the bw's, I ve realized they may sometimes exceed the defined value
> for short periods.
How are you measuring this and what rates do you use?
> How could I avoid this situation? I thought that
> implementing a leaky bucket'd be fine but i m not sure about this and
> how to do it on tc.
> I would be glad if anyone could help me. Thanks,
There are a few things you can do - I don't know if you really need to.
You could specify burst 10b cburst 10b quantum 1500 on the leaf classes.
There is also a setting - HYSTERESIS in the defines in
net/sched/sch_htb.c that when changed to 0 (need to recompile
kernel/module) makes htb a bit more accurate - though I never noticed it
affecting rates as such.
Andy.
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next prev parent reply other threads:[~2005-05-30 15:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-28 15:37 [LARTC] bandwidth control on htb Fatih Düzova
2005-05-30 15:08 ` Andy Furniss [this message]
2005-06-10 0:07 ` Andy Furniss
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