From owner-freebsd-stable@FreeBSD.ORG  Tue Sep 21 14:02:48 2010
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 5216A106566C
	for <freebsd-stable@freebsd.org>; Tue, 21 Sep 2010 14:02:48 +0000 (UTC)
	(envelope-from jon.otterholm@ide.resurscentrum.se)
Received: from mail1.cil.se (mail1.cil.se [217.197.56.125])
	by mx1.freebsd.org (Postfix) with ESMTP id E16E98FC1E
	for <freebsd-stable@freebsd.org>; Tue, 21 Sep 2010 14:02:47 +0000 (UTC)
X-MimeOLE: Produced By Microsoft Exchange V6.5
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Date: Tue, 21 Sep 2010 16:02:44 +0200
Message-ID: <C44C550808114E4B9F4CF3FCA16F10A101019598@edusrv05.edu.irc.local>
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
Thread-Topic: Dummynet
Thread-Index: ActZi89bZZ4Du7nwTRCNSbGf9x9AKQACKOXQ
References: <C44C550808114E4B9F4CF3FCA16F10A1010194D8@edusrv05.edu.irc.local>
	<slrni9hab2.27na.vadim_nuclight@kernblitz.nuclight.avtf.net>
From: "Jon Otterholm" <jon.otterholm@ide.resurscentrum.se>
To: <freebsd-stable@freebsd.org>
Subject: SV: Dummynet
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 21 Sep 2010 14:02:48 -0000

Hi Vadim!

> -----Ursprungligt meddelande-----
> Fr=E5n: owner-freebsd-stable@freebsd.org [mailto:owner-freebsd-
> stable@freebsd.org] F=F6r Vadim Goncharov
> Skickat: den 21 september 2010 14:48
> Till: freebsd-stable@freebsd.org
> =C4mne: Re: Dummynet
>=20
> Hi Jon Otterholm!
>=20
> On Mon, 20 Sep 2010 10:00:48 +0200; Jon Otterholm wrote about
> 'Dummynet':
>=20
> > Installed a new router running 8-stable and encounter some problems
> > when configuring dummynet pipes:
>=20
> > When setting buckets above 1024...
> > ipfw pipe 91 config bw 100Mbit/s mask src-ip 0xffffffff buckets 4096
>=20
> > ...I get the following error:
> > Clamp sched buckets to 1024 (was 4096)
>=20
> Try to write "buckets 4096" before "mask", though this is unlikely to =
help,
> there are some troubles with 8.1's changes in parser.

Didn't help.=20

>=20
> > # sysctl net.inet.ip.dummynet.hash_size
> > net.inet.ip.dummynet.hash_size: 4096
>=20
> Also, make sure you're doing this before any packets actually went to
> dummynet (e.g. just after reboot).

This is set in /etc/sysctl.conf ...

>=20
> > from man ipfw:
> >     buckets hash-table-size
> >           Specifies the size of the hash table used for storing the
> > various
> >           queues.  Default value is 64 controlled by the sysctl(8)
> > variable
> >           net.inet.ip.dummynet.hash_size, allowed range is 16 to =
65536.
>=20
> > Am I missing something here? This worked fine in the 7-branch.
>=20
> The reason is that luigi@ merged ipfw3 from -CURRENT between 8.0R and
> 8.1R.
> There are many new features and, as seen from many PRs, many new bugs.

OK. I just have to wait then for luigi@ to submit fixes.

Thanks for the tips and info.

Should I expect and be prepared for any other flaws from the current =
version of dummynet in 8-STABLE?

//JO