Date: Tue, 5 Jul 2005 08:49:08 +1200 From: Juha Saarinen <juhasaarinen@gmail.com> To: Ted Mittelstaedt <tedm@toybox.placo.com> Cc: FreeBSD questions <freebsd-questions@freebsd.org> Subject: Re: How to troubleshoot slow network performance with Realtek 8169s? Message-ID: <b34be842050704134939cd9a4b@mail.gmail.com> In-Reply-To: <LOBBIFDAGNMAMLGJJCKNOEPCFBAA.tedm@toybox.placo.com> References: <b34be842050703040270e10d50@mail.gmail.com> <LOBBIFDAGNMAMLGJJCKNOEPCFBAA.tedm@toybox.placo.com>
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On 7/4/05, Ted Mittelstaedt <tedm@toybox.placo.com> wrote: > This isn't weird at all. It is a driver issue. Remember I said the > driver hasn't been optimized. The driver could be letting the card > seize the PCI bus for an inordinate amount of time or some such. This > could also be an interaction with the card, the driver, and some bios > setting of your motherboard. This could be, for example, not allowing > enough cpu time for a higher-overhead program like FTP to run at full > speed, while allowing a lower overhead program like iperf, enough time > to run at full blast. I have seen issues like this before and they > have almost always been solved by swapping hardware. >=20 > I have in fact swapped hardware that acted up in one machine to > a different machine that had a different motherboard, same FreeBSD > versions on both systems, and that hardware became rock-solid in > the new motherboard. >=20 > Frankly it all depends on what you want to do. If this is a production > system you are going to need it online and you can't waste the time > to screw around with it - in that case you know the Intel chipset works > well in that motherboard, so replace the Realtek. If however this is > a fun-n-games system then keep the Realtek in there and file a send-pr > and work it that way. Righto, that, too, makes sense. Will engage in some further investigation (read: hardware swapping and head scratching) to narrow things down. --=20 Juha
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