Date: Mon, 11 Jul 2005 23:42:16 -0700 From: Luigi Rizzo <rizzo@icir.org> To: Danny Braniss <danny@cs.huji.ac.il> Cc: freebsd-net@freebsd.org, freebsd-stable@freebsd.org Subject: Re: tcp troughput weirdness Message-ID: <20050711234216.A11017@xorpc.icir.org> In-Reply-To: <E1DsE8n-0004CT-NQ@cs1.cs.huji.ac.il>; from danny@cs.huji.ac.il on Tue, Jul 12, 2005 at 09:21:13AM %2B0300 References: <E1DsE8n-0004CT-NQ@cs1.cs.huji.ac.il>
next in thread | previous in thread | raw e-mail | index | archive | help
we need more data points - did you test tcp or udp ? who is sourcing data ? are the bandwidth symmetric (i.e. A-> same as B -> A ? cheers luigi On Tue, Jul 12, 2005 at 09:21:13AM +0300, Danny Braniss wrote: > while checking out the quality of a switch, I came about a very disturbing > dicovery: FreeBSD <-> Linux througput is MUCH better than FreeBSD <-> FreeBSD > > Setup: > 2 blades in the same bladeserver, A running FreeBSD 5.4, B running Linux > C is running FreeBSD 5.4 > all are connected at 1gb. > > A -+ (FreeBSD) > | > B -+ (Linux) > | > [switch] > | > +---- [router] --- C (FreeBSD) > A & B are on the same Vlan. > > iperf results: > Interval Transfer Bandwidth > > A <=> B 0.0-10.0 sec 1.09 GBytes 939 Mbits/sec > > A <=> C 0.0-10.0 sec 515 MBytes 432 Mbits/sec > > B <=> C 0.0-10.0 sec 1.07 GBytes 918 Mbits/sec > > I've run the tests several times, and the numbers are very similar, > so BIG Question: is there anything that can be tunned on the FreeBSD to > better the throughput? > > 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"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050711234216.A11017>