Date: Sun, 29 Apr 2001 02:15:20 +0200 From: Siegbert Baude <siegbert.baude@gmx.de> To: Guilherme Oliveira <guilherme@nortenet.pt> Cc: FreeBSD Questions <freebsd-questions@FreeBSD.ORG> Subject: Re: Realtek 8139 very slow ! Message-ID: <3AEB5D18.1237F618@gmx.de> References: <3AE78686.675C1431@nortenet.pt> <004b01c0cdff$af51c4a0$cc01a8c0@xyf> <3AE84807.342A948@nortenet.pt> <3AEAC1CE.59626289@gmx.de> <3AEAD033.C5986090@nortenet.pt>
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> > So, where is your NIC connected to? DSL? Switch? Cross-connect cable > > to another NIC? > > To another NIC. So you should be able to use 100Mb/s full-duplex, assuming the other NIC supports the same capabilities. Use "100baseTX" instead of "10baseT/UTP" in the following example. > > man ifconfig > > man rl > > I didn't know that FreeBSD have man page for rl ... That is one BIG advantage of FreeBSD. Complete, uptodate, good manpages. Look for kernel modules for example. > > You do this with "ifconfig". To make it permanent add a line in > > /etc/rc.conf . > > I have there: > > ifconfig_rl0="inet <MY_IP> netmask <MY_NETMASK> media 10baseT/UTP" > > > > This will force half-duplex. For full-duplex you have to add the > > "mediaopt full-duplex" term. > I didn't know, until reading the other 8139 thread, that I have a bad > NIC. Actually it's not this bad. Auto-sensing often fails, so force the correct settings. Througput isn't as near to theoretical maximums than other NICs. Look in the source code for rl: DMA is disabled by default, because of it's very bad implementation. Using PIO therefore the processor load is much higher than for other NICs, of course. Me trying to enable DMA in the source (simply an IFDEF), ended with a non-working NIC. So it's definitely not the card for servers, but it's o.k. for normal home use. Ciao Siegbert P.S.: My previous posting had "fatal transient errors". Is your reply address correct? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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