From owner-freebsd-net@FreeBSD.ORG Sat Feb 11 08:41:04 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D0A4B1065672; Sat, 11 Feb 2012 08:41:04 +0000 (UTC) (envelope-from bzeeb-lists@lists.zabbadoz.net) Received: from mx1.sbone.de (mx1.sbone.de [IPv6:2a01:4f8:130:3ffc::401:25]) by mx1.freebsd.org (Postfix) with ESMTP id 862158FC0C; Sat, 11 Feb 2012 08:41:04 +0000 (UTC) Received: from mail.sbone.de (mail.sbone.de [IPv6:fde9:577b:c1a9:31::2013:587]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by mx1.sbone.de (Postfix) with ESMTPS id 47FA025D37C0; Sat, 11 Feb 2012 08:41:03 +0000 (UTC) Received: from content-filter.sbone.de (content-filter.sbone.de [IPv6:fde9:577b:c1a9:31::2013:2742]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPS id 674E6BDB1D3; Sat, 11 Feb 2012 08:41:02 +0000 (UTC) X-Virus-Scanned: amavisd-new at sbone.de Received: from mail.sbone.de ([IPv6:fde9:577b:c1a9:31::2013:587]) by content-filter.sbone.de (content-filter.sbone.de [fde9:577b:c1a9:31::2013:2742]) (amavisd-new, port 10024) with ESMTP id wmG5g06cSfVr; Sat, 11 Feb 2012 08:41:01 +0000 (UTC) Received: from orange-en1.sbone.de (orange-en1.sbone.de [IPv6:fde9:577b:c1a9:31:cabc:c8ff:fecf:e8e3]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by mail.sbone.de (Postfix) with ESMTPSA id 18C9DBDB1D2; Sat, 11 Feb 2012 08:41:00 +0000 (UTC) Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: text/plain; charset=us-ascii From: "Bjoern A. Zeeb" In-Reply-To: <4F362861.7090801@freebsd.org> Date: Sat, 11 Feb 2012 08:41:00 +0000 Content-Transfer-Encoding: quoted-printable Message-Id: References: <4F32E45F.9030504@rewt.org.uk> <4F32E8B6.8050409@freebsd.org> <4F32E8EC.4070206@rewt.org.uk> <4F362861.7090801@freebsd.org> To: Julian Elischer X-Mailer: Apple Mail (2.1084) Cc: "freebsd-net@freebsd.org" , Joe Holden Subject: Re: Max FIBS X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Feb 2012 08:41:04 -0000 On 11. Feb 2012, at 08:35 , Julian Elischer wrote: > On 2/8/12 1:28 PM, Joe Holden wrote: >> Julian Elischer wrote: >>> On 2/8/12 1:08 PM, Joe Holden wrote: >>>> Hey guys, >>>>=20 >>>> The maximum fibs is currently 16 due to an mbuf limitation I = believe? Is there any scope for the number being increased? >>> it was designed to be able to be expanable... there is only the one = place. >>>=20 >>> there are upcoming FIB changes and it may be a good oportunity to = change this in 10.. >>>=20 >> aha, I was under the impression that it was limited due to mbuf size, = not sure where I read that - think it was a commit from a while back. >=20 > you are correct.. the one limitation is the mbufs > but we can maybe change the mbuf layout a little in 10 > which will allow for more FIBs We are basically waiting for someone to touch mbufs for real and to be = able to do the full performance re-evaluation but I guess we'd also like to = have the secondary zone to die etc all in the same go... Meanwhile updating the limit locally isn't too hard; it's a couple of = line change. /bz --=20 Bjoern A. Zeeb You have to have visions! It does not matter how good you are. It matters what good you do!