From owner-freebsd-virtualization@freebsd.org  Tue Feb 27 21:16:58 2018
Return-Path: <owner-freebsd-virtualization@freebsd.org>
Delivered-To: freebsd-virtualization@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id B3805F29DC3
 for <freebsd-virtualization@mailman.ysv.freebsd.org>;
 Tue, 27 Feb 2018 21:16:58 +0000 (UTC)
 (envelope-from julian@freebsd.org)
Received: from vps1.elischer.org (vps1.elischer.org [204.109.63.16])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "vps1.elischer.org",
 Issuer "CA Cert Signing Authority" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 5763D70879
 for <freebsd-virtualization@freebsd.org>; Tue, 27 Feb 2018 21:16:58 +0000 (UTC)
 (envelope-from julian@freebsd.org)
Received: from Julian-MBP3.local (203-59-173-201.dyn.iinet.net.au
 [203.59.173.201]) (authenticated bits=0)
 by vps1.elischer.org (8.15.2/8.15.2) with ESMTPSA id w1RLGqAF075463
 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO);
 Tue, 27 Feb 2018 13:16:55 -0800 (PST)
 (envelope-from julian@freebsd.org)
Subject: Re: superfluous host interfaces
To: Harry Schmalzbauer <freebsd@omnilan.de>, Ruben <mail@osfux.nl>
Cc: FreeBSD virtualization <freebsd-virtualization@freebsd.org>
References: <20180225131401.GA3138@v007.zyxst.net>
 <5A93CEB6.1080406@omnilan.de> <a0ccbf77-ec23-127c-0529-ddb05dc689e3@osfux.nl>
 <5A93D9D0.4090804@omnilan.de> <54f9019e-6e86-8e10-32d7-9f14d159bb0a@osfux.nl>
 <5A93F9DE.9090908@omnilan.de>
From: Julian Elischer <julian@freebsd.org>
Message-ID: <6185840a-3517-bfd6-3715-80bf8f092f66@freebsd.org>
Date: Wed, 28 Feb 2018 05:16:46 +0800
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0)
 Gecko/20100101 Thunderbird/52.6.0
MIME-Version: 1.0
In-Reply-To: <5A93F9DE.9090908@omnilan.de>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
Content-Language: en-US
X-BeenThere: freebsd-virtualization@freebsd.org
X-Mailman-Version: 2.1.25
Precedence: list
List-Id: "Discussion of various virtualization techniques FreeBSD supports."
 <freebsd-virtualization.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-virtualization>, 
 <mailto:freebsd-virtualization-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-virtualization/>
List-Post: <mailto:freebsd-virtualization@freebsd.org>
List-Help: <mailto:freebsd-virtualization-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization>, 
 <mailto:freebsd-virtualization-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 27 Feb 2018 21:16:58 -0000

On 26/2/18 8:13 pm, Harry Schmalzbauer wrote:
>
>
> If you're happy with your setup, I don't think you gain anything from
> switching to ng_bridge(4), besides learning to control netgraph(4)
> (which is very desirable imho).
> I haven't had time left to do useful benchmarking regarding ng_bridge(4)
> vs. if_bridge(4). I even don't know if netgraph nodes are still limited
> to single threads.

depends on the node.. teh framework allows many threads to traverse it at a time
but some nodes have resources that need guarding.