From owner-freebsd-net@FreeBSD.ORG Tue May 21 12:42:18 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id ED095716 for ; Tue, 21 May 2013 12:42:18 +0000 (UTC) (envelope-from barney_cordoba@yahoo.com) Received: from nm27-vm0.bullet.mail.ne1.yahoo.com (nm27-vm0.bullet.mail.ne1.yahoo.com [98.138.91.63]) by mx1.freebsd.org (Postfix) with ESMTP id A094EE80 for ; Tue, 21 May 2013 12:42:18 +0000 (UTC) Received: from [98.138.90.53] by nm27.bullet.mail.ne1.yahoo.com with NNFMP; 21 May 2013 12:40:08 -0000 Received: from [98.138.226.166] by tm6.bullet.mail.ne1.yahoo.com with NNFMP; 21 May 2013 12:40:08 -0000 Received: from [127.0.0.1] by omp1067.mail.ne1.yahoo.com with NNFMP; 21 May 2013 12:40:08 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 136420.86532.bm@omp1067.mail.ne1.yahoo.com Received: (qmail 961 invoked by uid 60001); 21 May 2013 12:40:08 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1369140008; bh=jGYAe5SJ25lT9ZYJSc5GyyPVtUaxAJ8kAbphDKLa6zw=; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=u6f0ou4K5m9RfwJp/wqicB/sbHkrAej978CpJqVQU2YC+2lMJ9uvPNLHob8kQbEgpMneZ5fa4OWOrWWLVJEfjlq7PXkDqfVIJAeUztMuaqliWXGI8R6QhvBrGT+ORPS2hBDLB9nIarlb9Isc46k+0EKw/3vT9XA7GNDszzwzc8I= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=nJeIyYZFf0aeyzdIJ5vfAP6fRcLF4FZF5ADINCNGKyjOjLtnSORkqvne36tBvPbdNX/TxfoceKuBqPRXK/kKoF1sytAsvEjno/tySNS1mblwpe6mik0e3qY2SEnO0vN6rvrIxVzZMxOLtV1KqU7yQAxrdrjHWSdI4GnqjwcueQ4=; X-YMail-OSG: iynRALUVM1ntHpeZdd1ZGrrQVYd0h9ebp8cxjZYbaUtqIN9 zSqZDB72euDIl8NBMqHZ3KD5CJKwigcApP7O2.UqDqOPN7AgCAah0_czLXRD XZyr.Su53igTwDG9__CuPWKdFhZU74ldhQf2eiQpSq9K7F7FjEi8tfEPLDmF G1cYtbN89NSIxfrnrAWHtfAM9cE3v8HODjjmLtyjbji.CpHY4BirGAUWYDnS cJWBmaU7DzYMXnphu0PyyMjaRVnzseGi6pFTEiXMOBFkMG7doYiqONFPJlJ5 IWGURNf_czPSJ3O.DSWkeqAFE3XWyYKWbIxxWC1ibdkPAjTntFAF1rko5D24 scfLwdD2o_.ysunUeS5R73ozGhujmFRkBkDSI6lqi7fgDVvA6zNmZLOC5G5w vi6Oq76iywLtZrE__h2f3tlh8vSRRmu261HJQEk5xsbG_X4xrGfShWyOm.Yc lp6MV5sDV3dAq0G.wDCnjDeagzKXIoMa8ob0ff9ekZNpCOKzmq1SLUEwyM6R bH_xGs40E9JxZjrO7ykkX4SRWVrCL0HKjo40u8zQ- Received: from [98.203.118.124] by web121602.mail.ne1.yahoo.com via HTTP; Tue, 21 May 2013 05:40:07 PDT X-Rocket-MIMEInfo: 002.001, CgotLS0gT24gVHVlLCA1LzIxLzEzLCBsaXVqaWUgPGxpdWppZUAyNjMubmV0PiB3cm90ZToKCj4gRnJvbTogbGl1amllIDxsaXVqaWVAMjYzLm5ldD4KPiBTdWJqZWN0OiBSZTogbmV0bWFwIGJyaWRnZSBjYW4gdHJhbm1pdCBiaWcgcGFja2V0IGluIGxpbmUgcmF0ZSA_Cj4gVG86IGZyZWVic2QtbmV0QGZyZWVic2Qub3JnCj4gRGF0ZTogVHVlc2RheSwgTWF5IDIxLCAyMDEzLCA1OjI1IEFNCj4gSGksIFByb2YuTHVpZ2kgUklaWk8KPiDCoMKgwqAKPiAgRmlyc3RseSBpIHNob3VsZCB0aGFuayB5b3UgZm9yIG4BMAEBAQE- X-Mailer: YahooMailClassic/15.1.8 YahooMailWebService/0.8.142.542 Message-ID: <1369140007.80942.YahooMailClassic@web121602.mail.ne1.yahoo.com> Date: Tue, 21 May 2013 05:40:07 -0700 (PDT) From: Barney Cordoba Subject: Re: netmap bridge can tranmit big packet in line rate ? To: freebsd-net@freebsd.org In-Reply-To: <1369128316187-5813643.post@n5.nabble.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Cc: liujie@263.net 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 12:42:19 -0000 =0A=0A--- On Tue, 5/21/13, liujie wrote:=0A=0A> From: liuj= ie =0A> Subject: Re: netmap bridge can tranmit big packet i= n line rate ?=0A> To: freebsd-net@freebsd.org=0A> Date: Tuesday, May 21, 20= 13, 5:25 AM=0A> Hi, Prof.Luigi RIZZO=0A> =A0=A0=A0=0A> Firstly i should th= ank you for netmap. I tried to send a=0A> e-mail to you=0A> yestoday, but i= t was rejected.=0A> =0A> I used two machines to test netmap bridge. all wi= th i7-2600=0A> cpu and intel=0A> 82599 dual-interfaces card.=0A> =0A> One = worked as sender and receiver with pkt-gen, the other=0A> worked as bridge= =0A> with bridge.c.=0A> =0A> as you said,I feeled comfous too when i saw t= he big packet=0A> performance=0A> dropped, i tried to change the memory par= ameters of=0A> netmap(netmap_mem1.c=0A> netmap_mem2.c),but it seemed that= =A0 can not resove the=0A> problem.=0A> =A0 60-byte packet send 14882289 pp= s=A0 recv=A0=0A> 13994753 pps=0A> =A0 124-byte=A0 =A0 =A0=0A> =A0=A0=A0send= =A0=A0=A08445770 pps=A0=0A> recv=A0 =A0 7628942 pps=0A> =A0 252-byte=A0 =A0= =A0=0A> =A0=A0=A0send=A0=A0=A04529819 pps=A0=0A> recv=A0 =A0=A0=A03757843 = pps=0A> =A0 508-byte=A0 =A0 =A0=0A> =A0=A0=A0send=A0 =A0 2350815 pps=A0=0A>= recv=A0 =A0 1645647 pps=0A> =A0 1514-byte=A0 =A0 =A0=A0=A0send=A0=0A> =A0 = 814288 pps=A0 =A0=A0=A0recv=A0 489133=0A> pps=0A=0AThese numbers indicate y= ou're tx'ing 7.2Gb/s with 60 byte packets and=0A9.8Gb/s with 1514, so maybe= you just need a new calculator?=0A=0ABC