Messages in this thread |  | | Date | Thu, 07 Sep 2000 11:40:39 -0700 | From | Jack Duan <> | Subject | Re: Question: slow network performance between Linux and Solaris 7 |
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HI all,
Thanks for all the help. I have switched to a low-end 16-bit PCMCIA network card by 3COM 3C589 10/BT. And now everything works as it should. Before making this change, I thought that my problem was caused by the TCP/IP layer -- between Linux and Sun, because I could get good network performance between two Liux boxes. Anyhow, after start to use this 3COM card, it works. So, I think the problem IS Xircom Cardbus card related.
Thanks to all who responded! ... The best thing I got back from this that the support from Linux is just good as ever... and it is the problem with the Xircom driver, not the TCP/IP layer... :-)
Jack
David Hinds wrote: > > On Thu, Sep 07, 2000 at 03:34:46AM +0000, Andrew Morton wrote: > > > > Seconded. In both 2.2 (tulip_cb) and 2.4 (xircom_tulip_cb) on 100baseT > > the driver reports a huge number of Tx carrier errors and sustains 50 > > mbits/sec on TCP Tx and 1 mbit/sec on TCP Rx. It should do 98 mbits/sec > > each way (using netperf). > > This is fixed in my latest PCMCIA beta, on projects.sourceforge.net in > /pub/pcmcia-cs/NEW. > > (there are two bugs... the driver doesn't monitor the MII to determine > when to switch the Tulip into full duplex, and also, even in full > duplex mode, the bogus Xircom chip still reports carrier errors) > > > And (less seriously), with or without Andrea's recent patch the > > interface doesn't work after poweron or hotplug. It needs a down/up or > > it needs to be set into promiscuous mode long enough to receive a > > packet. > > I don't know what the deal is with the promiscuous thing. I find that > with my card, Andrea's patch doesn't really make a difference; with or > without it, the card sometimes needs to be toggled into promiscuous > mode. It seems random. > > -- Dave
-- Jack Duan, jack.duan@sun.com Systems Architect, iPlanet Infrastructure Services - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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