Date: Tue, 2 Jun 2009 10:52:32 -0700 From: Jack Vogel <jfvogel@gmail.com> To: Michael <freebsdusb@bindone.de> Cc: freebsd-bugs@freebsd.org Subject: Re: Bug in igb driver Message-ID: <2a41acea0906021052m1aa394bfq2d30c0588e41443c@mail.gmail.com> In-Reply-To: <4A2558EB.4060604@bindone.de> References: <4A25185D.2060304@bindone.de> <4A2558EB.4060604@bindone.de>
next in thread | previous in thread | raw e-mail | index | archive | help
Thanks for noting this, code that is coming has the driver disable LRO when the stack calls for it, I believe it will solve this problem. Regards, Jack On Tue, Jun 2, 2009 at 9:52 AM, Michael <freebsdusb@bindone.de> wrote: > Michael wrote: > > Hello, > > > > we encountered problems using igb driver on a Supermicro dual quad-core > > system (X7DWU). > > It features an Intel Gigabit dual port controller (82575). > > > > The IP forwarding performance was extremely bad (5 kb/s up to 50 kb/s) > > until we disabled > > Large Receive Offloading in /etc/sysctl.conf: > > dev.igb.0.enable_lro=0 > > dev.igb.1.enable_lro=0 > > > > (changing it using ifconfig -lro and down/up the interfaces didn't help). > > > > With the systctl values set as shown above, we get the expected > > performance ob 50-60 MB/s. > > We tested this on 7.1-RELEASE, 7.2-RELEASE and 7-STABLE. Right now we're > > installing > > 8-CURRENT on the machine to see if it makes a difference. > > > > It think it would be worthwhile to list this issue in the 7.2 release > > errata section (that would've > > saved us a significant amount of time :). > > > > Cheers > > Michael > > > > > > > > > > _______________________________________________ > > freebsd-bugs@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-bugs > > To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" > > > Turns out that 8/CURRENT of today has the same issues. > Is this okay as a bug report, or should I file a PR seperately? > > _______________________________________________ > freebsd-bugs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-bugs > To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?2a41acea0906021052m1aa394bfq2d30c0588e41443c>