Date: Tue, 21 May 2013 05:40:07 -0700 (PDT) From: Barney Cordoba <barney_cordoba@yahoo.com> To: freebsd-net@freebsd.org Cc: liujie@263.net Subject: Re: netmap bridge can tranmit big packet in line rate ? Message-ID: <1369140007.80942.YahooMailClassic@web121602.mail.ne1.yahoo.com> In-Reply-To: <1369128316187-5813643.post@n5.nabble.com>
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=0A=0A--- On Tue, 5/21/13, liujie <liujie@263.net> wrote:=0A=0A> From: liuj= ie <liujie@263.net>=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
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