Date: Thu, 22 Dec 2005 13:30:27 +0300 From: Gleb Smirnoff <glebius@FreeBSD.org> To: Danny Braniss <danny@cs.huji.ac.il> Cc: freebsd-stable@FreeBSD.org Subject: Re: em bad performance Message-ID: <20051222103027.GZ41381@cell.sick.ru> In-Reply-To: <E1EpNco-000HuT-VQ@cs1.cs.huji.ac.il> References: <20051222095240.GX41381@FreeBSD.org> <E1EpNco-000HuT-VQ@cs1.cs.huji.ac.il>
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On Thu, Dec 22, 2005 at 12:24:42PM +0200, Danny Braniss wrote: D> ------------------------------------------------------------ D> Server listening on TCP port 5001 D> TCP window size: 64.0 KByte (default) D> ------------------------------------------------------------ D> [ 4] local 132.65.16.100 port 5001 connected with [6.0/SE7501WV2] port 58122 D> (intel westvill) D> [ ID] Interval Transfer Bandwidth D> [ 4] 0.0-10.0 sec 1.01 GBytes 867 Mbits/sec D> [ 4] local 132.65.16.100 port 5001 connected with [5.4/SE7501WV2] port 55269 D> (intel westvill) D> [ ID] Interval Transfer Bandwidth D> [ 4] 0.0-10.0 sec 967 MBytes 811 Mbits/sec D> [ 5] local 132.65.16.100 port 5001 connected with [6.0/SR1435VP2 port 58363 D> (intel dual xeon/emt64) D> [ ID] Interval Transfer Bandwidth D> [ 5] 0.0-10.0 sec 578 MBytes 485 Mbits/sec D> D> i've run this several times, and the results are very similar. D> i also tried i386, and the same bad results. D> all hosts are connected at 1gb to the same switch. So we see a strong drawback between SE7501WV2 and SR1435VP2. Let's compare the NIC hardware. Can you plese show pciconf -lv | grep -A3 ^em on both motherboards? -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE
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