Date: Wed, 11 Oct 2006 13:28:58 -0400 From: Mike Tancsa <mike@sentex.net> To: Danny Braniss <danny@cs.huji.ac.il> Cc: freebsd-net@freebsd.org Subject: Re: em blues Message-ID: <il5qi256p6ks5dl9kks4hd4u00kekrtokn@4ax.com> In-Reply-To: <E1GXeiv-0007hw-4u@cs1.cs.huji.ac.il> References: <E1GXeiv-0007hw-4u@cs1.cs.huji.ac.il>
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On Wed, 11 Oct 2006 16:06:17 +0200, in sentex.lists.freebsd.net you wrote: >the box is a bit old (Intel Pentium III (933.07-MHz 686-class CPU) >dual cpu. > >running iperf -c (receiving): > >freebsd-4.10 0.0-10.0 sec 936 MBytes 785 Mbits/sec >freebsd-5.4 0.0-10.0 sec 413 MBytes 346 Mbits/sec >freebsd.6.1 0.0-10.0 sec 366 MBytes 307 Mbits/sec >freebsd-6.2 0.0-10.0 sec 344 MBytes 289 Mbits/sec > >btw, iperf -s (xmitting) is slightly better >freebsd-4.10 0.0-10.0 sec 664 MBytes 558 Mbits/sec >freebsd-5.4 0.0-10.0 sec 390 MBytes 327 Mbits/sec >freebsd-6.1 0.0-10.0 sec 495 MBytes 415 Mbits/sec >freebsd-6.2 0.0-10.0 sec 487 MBytes 408 Mbits/sec > >so, it seems that as the release number increases, the em >throughput gets worse - or iperf is. Hi, What is your setup for testing ? For me, with a couple of em NICs back to back I get iperf -c 1.1.1.2 ------------------------------------------------------------ Client connecting to 1.1.1.2, TCP port 5001 TCP window size: 32.5 KByte (default) ------------------------------------------------------------ [ 3] local 1.1.1.1 port 57584 connected with 1.1.1.2 port 5001 [ 3] 0.0-10.0 sec 1.06 GBytes 914 Mbits/sec 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Mon Oct 9 23:22:10 EDT 2006 One is a Pentium(R) 4 CPU 3.00GHz and the other an AMD 3800 X2 Going the other way is about the same (900Mb) ---Mike > >danny > > >_______________________________________________ >freebsd-net@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-net >To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" -------------------------------------------------------- Mike Tancsa, Sentex communications http://www.sentex.net Providing Internet Access since 1994 mike@sentex.net, (http://www.tancsa.com)
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