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Date: Tue, 04 Apr 2006 17:54:33 -0400
From: Mike Jakubik <mikej@rogers.com>
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To: Andrew Gallatin <gallatin@cs.duke.edu>
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Cc: current@freebsd.org
Subject: Re: Broadcom ServerWorks HT-1000 support in OpenBSD
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Andrew Gallatin wrote:
> Mike Jakubik writes:
>  > It seems like OpenBSD 3.9 has support for the HT-1000 IDE/SATA chipset, 
>  > and we are still missing it. Is there any way to port their code over? 
>  > There are a few nice motherboards out there that use this chipset (most 
>  > amd server boards use the crappy nvidia chipset and the accompanying 
>  > crappy network card).
>
> Why do you call the Nvida chipset "crappy"?   I assume you don't care
> about the PCI Express bandwidth of the accompanying "northbridge"?
>
> From a performance standpoint, the Nvida chipset is far from crappy,
> and can easily sustain 10GbE speeds for both send and receive, as well
> as send+receive at the same time.  Our lab tests have shown well over
> 18Gb/s for send+receive using our PCI-e x8 10GbE card in an Nvidia
> CK804 based opteron.
>
> For any application which is moving a lot of data using PCI-e cards on
> an opteron, I would strongly recommend Nvidia based servers. 
>   

None of that matters if the system is unreliable, and what you are 
boasting here is just the speed of a PCIe bus. See the mailing lists for 
the numerous problems associated with this chipset and the network card.