Date: Tue, 02 Jun 2009 18:52:59 +0200 From: Michael <freebsdusb@bindone.de> To: freebsd-bugs@freebsd.org Subject: Re: Bug in igb driver Message-ID: <4A2558EB.4060604@bindone.de> In-Reply-To: <4A25185D.2060304@bindone.de> References: <4A25185D.2060304@bindone.de>
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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?
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