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Date: Sun, 21 Jun 2009 22:22:12 +0200 (CEST)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: =?ISO-8859-15?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: is RTL8139 THAT bad?
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> Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> writes:
>> Why it's THAT bad?
>
> http://svn.freebsd.org/base/head/sys/pci/if_rl.c
>
> Scroll down past the copyright, license and attribution.  Read the
> 38-line comment that explains just how crappy this chip really is.

Well - really "low end".

But - this computer can do memcpy at 80MB/s, so at 3.5MB/s it should be 5% 
CPU for memcpy, and one interrupt per one packet (2500 packets/s).

Is something more that make it consume >50% CPU?