linux-kernel - Re: prioritize PCI traffic ?

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Message-ID: <20070115120124.GA5045@rhlx01.hs-esslingen.de>
Date:	Mon, 15 Jan 2007 13:01:24 +0100
From:	Andreas Mohr <andi@...x01.fht-esslingen.de>
To:	Soeren Sonnenburg <kernel@....de>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: prioritize PCI traffic ?

Hi,

On Mon, Jan 15, 2007 at 12:07:45PM +0100, Soeren Sonnenburg wrote:
> Dear all,
> 
> is it possible to explicitly tell the kernel to prioritize PCI traffic
> for a number of cards in pci slots x,y,z ?
> 
> I am asking as severe ide traffic causes lost frames when watching TV
> using 2 DVB cards + vdr... This is simply due to the fact that the PCI
> bus is saturated...
> 
> So, is any prioritizing of the PCI bus possible ?

You probably need to adjust PCI latency settings via setpci:

http://www-128.ibm.com/developerworks/library/l-hw2.html

Not sure whether this is a LKML related question ;)

Andreas Mohr
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