Re: Via-Rhine ethernet driver problem?
From: Roger Luethi (rl_at_hellgate.ch)
Date: 03/29/04
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Date: Mon, 29 Mar 2004 20:36:58 +0200 To: walt <wa1ter@myrealbox.com>
On Mon, 29 Mar 2004 09:24:25 -0800, walt wrote:
> ECS K7VTA3 motherboard with built-in ethernet chip:
>
> 00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev
> 74)
>
> [...]
>
> I also discovered by using 'scp' to copy files between machines that the bad
> performance is assymetrical: copying a file *to* this machine runs at about
> half-speed (5 MB/sec) whereas copying a file *from* this machine runs at
> 45 KiloB/sec, about one percent of expected.
>
> The reason I feel this is software and not hardware is that the same machine
> running any of the BSD's runs full-speed in both directions.
If you have ACPI and/or IO-APIC enabled, does the behavior change if
you turn them off? Any info in the kernel log? If not, what if you
change the driver's debug level to 3? Is the slow transfer rate
the result of short, fast bursts or actual sustained throughput at
45 KB/sec?
Roger
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