Date: Thu, 22 Dec 2005 12:24:42 +0200 From: Danny Braniss <danny@cs.huji.ac.il> To: Gleb Smirnoff <glebius@FreeBSD.org> Cc: freebsd-stable@FreeBSD.org Subject: Re: em bad performance Message-ID: <E1EpNco-000HuT-VQ@cs1.cs.huji.ac.il> In-Reply-To: Message from Gleb Smirnoff <glebius@FreeBSD.org> of "Thu, 22 Dec 2005 12:52:40 %2B0300." <20051222095240.GX41381@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> On Wed, Dec 21, 2005 at 06:55:29PM +0200, Danny Braniss wrote: > D> this particular mb, intel sr1435vp2, has 2 ethernets, > D> one is an Intel '82547EI Gigabit Ethernet Controller', the other is > D> a Marvell (which seems that the driver is around the corner). > D> > D> the em performance under 6.0-stable is half of any other box i have, > D> and a similar mb running linux gives about 1GB, so > D> > D> Q: any ideas what can be wrong? > > Please be more informative. How do you measure performance: netperf, > ftp, ... ? iperf iperf -s ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 64.0 KByte (default) ------------------------------------------------------------ [ 4] local 132.65.16.100 port 5001 connected with [6.0/SE7501WV2] port 58122 (intel westvill) [ ID] Interval Transfer Bandwidth [ 4] 0.0-10.0 sec 1.01 GBytes 867 Mbits/sec [ 4] local 132.65.16.100 port 5001 connected with [5.4/SE7501WV2] port 55269 (intel westvill) [ ID] Interval Transfer Bandwidth [ 4] 0.0-10.0 sec 967 MBytes 811 Mbits/sec [ 5] local 132.65.16.100 port 5001 connected with [6.0/SR1435VP2 port 58363 (intel dual xeon/emt64) [ ID] Interval Transfer Bandwidth [ 5] 0.0-10.0 sec 578 MBytes 485 Mbits/sec i've run this several times, and the results are very similar. i also tried i386, and the same bad results. all hosts are connected at 1gb to the same switch. > > What is the box doing: routing, bridging, running ftp server? nothing :-( i noticed the badness when trying to set it up as my new dev. machine and tried a make buildworld, and after 4hs i realized that something is bad. danny
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E1EpNco-000HuT-VQ>