From owner-freebsd-net@FreeBSD.ORG Tue May 21 11:46:31 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 4E9CCF74 for ; Tue, 21 May 2013 11:46:31 +0000 (UTC) (envelope-from luigi@onelab2.iet.unipi.it) Received: from onelab2.iet.unipi.it (onelab2.iet.unipi.it [131.114.59.238]) by mx1.freebsd.org (Postfix) with ESMTP id 11A18A64 for ; Tue, 21 May 2013 11:46:29 +0000 (UTC) Received: by onelab2.iet.unipi.it (Postfix, from userid 275) id 3D6A37300A; Tue, 21 May 2013 13:40:20 +0200 (CEST) Date: Tue, 21 May 2013 13:40:20 +0200 From: Luigi Rizzo To: liujie Subject: Re: netmap bridge can tranmit big packet in line rate ? Message-ID: <20130521114020.GB79320@onelab2.iet.unipi.it> References: <1369036008085-5813346.post@n5.nabble.com> <2F381156-B29B-4ED9-B7C4-CC1C629ABF6A@sfc.wide.ad.jp> <1369110371922-5813589.post@n5.nabble.com> <1369128316187-5813643.post@n5.nabble.com> <201305211229.28182.zec@fer.hr> <1369135802357-5813661.post@n5.nabble.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1369135802357-5813661.post@n5.nabble.com> User-Agent: Mutt/1.5.20 (2009-06-14) Cc: freebsd-net@freebsd.org X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 May 2013 11:46:31 -0000 On Tue, May 21, 2013 at 04:30:02AM -0700, liujie wrote: > Thank marko. > > My machine mainboard chipset is intel c206, and network is dual-port intel > x520 card. while you run your tests, try to instrument bridge.c and see how many pps it actually receives and transmits. As Marko said, there might be congestion on the PCIe bus, but i would expect a lot more of it with small packet sizes than large ones. cheers luigi > I'll find other machine to test once more. > > > > -- > View this message in context: http://freebsd.1045724.n5.nabble.com/netmap-bridge-can-tranmit-big-packet-in-line-rate-tp5813346p5813661.html > Sent from the freebsd-net mailing list archive at Nabble.com. > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"