Date: Tue, 18 Dec 2001 22:09:31 +0100 (CET) From: Christian Kratzer <ck@cksoft.de> To: Petr Holub <hopet@ics.muni.cz> Cc: <freebsd-stable@FreeBSD.ORG>, <freebsd-hackers@FreeBSD.ORG>, <freebsd-current@FreeBSD.ORG>, <freebsd-net@FreeBSD.ORG> Subject: Re: tx driver Message-ID: <Pine.LNX.4.33.0112182204480.1454-100000@hirvi.cksoft.de> In-Reply-To: <003c01c187c6$4c323e00$d2e86cc2@kloboucek>
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Hi, On Tue, 18 Dec 2001, Petr Holub wrote: > Hi all! > > I've encountered really awful behavior of my SMC card using > tx driver in FreeBSD 4.3. On 100 Mbps network I get the throughput > just about 200 kBps :-( Colleagues of mine running some PC > based routers have very similar experiences with this driver > (in both 4.3 and 4.4 Rel's) The same card running under the > exactely same conditions in NetBSD is working pretty good > (11 MBps) and in Windows 2000 (8 MBps). Also running other cards > (like those with rl drivers) on the same network gives > very reasonable results in FreeBSD (approx. 10.5 MBps) so > I'm pretty convinced driver is to blame. Does anybody have > some workaround for this? the usual problem with this kind of performance with any driver is failed full/half duplex negotiation. Please try manually forcing your card to half or full duplex Add one of -mediaopt full-duplex or -mediaopt half-duplex depending on the setting of your switch to your ifconfig line in /etc/rc.conf This is the single most common cause of really low ethernet performance. I have had good experiences with the tx driver on 4.3 ond 4.4 releases. Greetings Christian -- CK Software GmbH Christian Kratzer, Schwarzwaldstr. 31, 71131 Jettingen Email: ck@cksoft.de Phone: +49 7452 889-135 Open Software Solutions, Network Security Fax: +49 7452 889-136 FreeBSD spoken here! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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