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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--- On Tue, 5/21/13, liujie <liujie@263.net> wrote: > From: liujie <liujie@263.net> > Subject: Re: netmap bridge can tranmit big packet in line rate ? > To: freebsd-net@freebsd.org > Date: Tuesday, May 21, 2013, 5:25 AM > Hi, Prof.Luigi RIZZO > > Firstly i should thank you for netmap. I tried to send a > e-mail to you > yestoday, but it was rejected. > > I used two machines to test netmap bridge. all with i7-2600 > cpu and intel > 82599 dual-interfaces card. > > One worked as sender and receiver with pkt-gen, the other > worked as bridge > with bridge.c. > > as you said,I feeled comfous too when i saw the big packet > performance > dropped, i tried to change the memory parameters of > netmap(netmap_mem1.c > netmap_mem2.c),but it seemed that can not resove the > problem. > 60-byte packet send 14882289 pps recv > 13994753 pps > 124-byte > send 8445770 pps > recv 7628942 pps > 252-byte > send 4529819 pps > recv 3757843 pps > 508-byte > send 2350815 pps > recv 1645647 pps > 1514-byte send > 814288 pps recv 489133 > pps These numbers indicate you're tx'ing 7.2Gb/s with 60 byte packets and 9.8Gb/s with 1514, so maybe you just need a new calculator? BC
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