From owner-freebsd-current@freebsd.org Tue Feb 23 15:17:15 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E2063AB1470 for ; Tue, 23 Feb 2016 15:17:15 +0000 (UTC) (envelope-from franco@lastsummer.de) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id D11AED8A for ; Tue, 23 Feb 2016 15:17:15 +0000 (UTC) (envelope-from franco@lastsummer.de) Received: by mailman.ysv.freebsd.org (Postfix) id D0B92AB146F; Tue, 23 Feb 2016 15:17:15 +0000 (UTC) Delivered-To: current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D0515AB146E for ; Tue, 23 Feb 2016 15:17:15 +0000 (UTC) (envelope-from franco@lastsummer.de) Received: from host64.kissl.de (host64.kissl.de [213.239.241.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "*.shmhost.net", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 9C454D89 for ; Tue, 23 Feb 2016 15:17:15 +0000 (UTC) (envelope-from franco@lastsummer.de) Received: from [10.0.128.106] (ipservice-092-208-166-129.092.208.pools.vodafone-ip.de [92.208.166.129]) (Authenticated sender: web104p1) by host64.kissl.de (Postfix) with ESMTPSA id 841406B514 for ; Tue, 23 Feb 2016 16:09:40 +0100 (CET) From: Franco Fichtner Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: ng_ether(4) performance implications Message-Id: <68CCCC44-B14D-4CD5-ACC6-FB8A7F8E6FB9@lastsummer.de> Date: Tue, 23 Feb 2016 16:09:39 +0100 To: FreeBSD CURRENT Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) X-Mailer: Apple Mail (2.3112) X-Virus-Scanned: clamav-milter 0.98.7 at host64.kissl.de X-Virus-Status: Clean X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Feb 2016 15:17:16 -0000 Hi all, I'm working on FreeBSD-based configuration code dating back more than 5 years. Although this code uses NETGRAPH compiled into the kernel, it also makes use of NGM_ETHER_DETACH and a self-rolled NGM_ETHER_ATTACH to avoid having netgraph-attached interfaces when mpd isn't needed. In 2016, how is the state of ng_ether(4) performance to assert whether this approach is actually useful or not. Seeing that NGM_ETHER_ATTACH is not available and should usefulness be implicated, would code for NGM_ETHER_ATTACH be merged into FreeBSD? Thanks, Franco