From owner-freebsd-hackers@FreeBSD.ORG  Mon Jan 16 06:59:09 2012
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To: Yuri <yuri@rawbw.com>
From: "Julian H. Stacey" <jhs@berklix.com>
Organization: http://www.berklix.com BSD Unix Linux Consultancy, Munich Germany
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In-reply-to: Your message "Sun, 15 Jan 2012 16:21:19 PST."
	<4F136D7F.6070309@rawbw.com> 
Date: Mon, 16 Jan 2012 07:33:03 +0100
Sender: jhs@berklix.com
Cc: freebsd-hackers@freebsd.org
Subject: Re: Sound on the system briefly interrupts when kde4 switches
	windows with nvidia card 
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Hi,
Reference:
> From:		Yuri <yuri@rawbw.com> 
> Date:		Sun, 15 Jan 2012 16:21:19 -0800 
> Message-id:	<4F136D7F.6070309@rawbw.com> 

Yuri wrote:
> On 01/15/2012 15:34, Dieter BSD wrote:
> > Some drivers do things like DELAY(big number) while interrupts are turned
> > off. Very bad. Look through the source, maybe you can find it.
> >
> > We REALLY need a way to service one device without shutting off
> > interrupts from other devices.
> 
> NVidia driver is closed source and ships with many binaries. But code 
> immediately interacting with kernel is open and it does call DELAY and 
> also tsleep(9)
> 
> Yuri

This might help ?
man mplayer:
 -priority
 -cache
man rtprio

Cheers,
Julian
-- 
Julian Stacey, BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com
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