netdev - Re: thousands of classes, e1000 TX unit hang

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Date:	Tue, 5 Aug 2008 11:04:53 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Denys Fedoryshchenko <denys@...p.net.lb>
Cc:	netdev@...r.kernel.org
Subject: Re: thousands of classes, e1000 TX unit hang

On 05-08-2008 12:05, Denys Fedoryshchenko wrote:
> I found, that packetloss happening when i am deleting/adding classes.
> I attach result of oprofile as file.
...

Deleting of estimators (gen_kill_estimator) isn't optimized for
a large number of them, and it's a known issue. Adding of classes
shouldn't be such a problem, but maybe you could try to do this
before adding filters directing to those classes.

Since you can control rate with htb, I'm not sure you really need
policing: at least you could try if removing this changes anything.
And I'm not sure: do these tx hangs happen only when classes are
added/deleted or otherwise too?

Jarek P.
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