[ardour-users] [Fwd: Re: Is 64 bit dual core supported and stable yet?]

George Chan george at goodmusic.ca
Fri Dec 2 19:17:13 PST 2005

I was just about to go out and buy a dual core AMD processor &
motherboard, but after reading this email (see below), I'm going to go
with a dual CPU single core Opteron with an ASUS K8N-DL motherboard.
Tyan motherboards are nice, buy way too expensive for me.

You may find this link helpful:

If future dual core AMD CPUs remain in a 940 pin configuration, I can
always upgrade to a Dual CPU Dual Core system.  That may not happen
though.  I recently read that the next generation of Dual Core AMD CPUs
will have a different pin configuration.

If there was no design fault in AMD's dual core offerings, I would like
to have gone with a Dual CPU Dual Core setup.... buying a dual cpu
motherboard with one dual core cpu to start with, then adding a second
cpu when I had some extra cash.

Hope this is helpful.


-------- Forwarded Message --------
From: Paul Davis <paul at linuxaudiosystems.com>
Reply-To: paul at linuxaudiosystems.com
To: Joel White <cv223 at comcast.net>
Cc: ardour-users at lists.ardour.org
Subject: Re: [ardour-users] Is 64 bit dual core supported and stable
Date: Tue, 29 Nov 2005 09:34:28 -0500

On Mon, 2005-11-28 at 23:15 -0500, Joel White wrote:
> Even thought the results are good so far, I still get occasional xruns like:
> **** alsa_pcm: xrun of at least 118.867 msecs
> (this particular xrun interrupted a recording with my band, which is 
> _very_ bad! I was even running capture only and with a longer period, 
> just to be sure xruns wouldn't happen!)
> and the odd:
> delay of 1131462.000 usecs exceeds estimated spare time of 5606.000; 
> restart ...
> (this type of error comes mostly when audio connections change, but also 
> at other times, although the delay isn't usually quite so long)
>  From my understanding, both of these time periods indicate something 
> very wrong (an xrun of 118+ msecs?? a delay of 1.13+ _sec_?!?!), but I 
> haven't been able to track them down, yet.  I've run Ardour recording 8 

this is caused by a design fault in AMD's dual core offerings. they have
already made it clear that future designs will rectify the problem.
there is a slowly evolving discussion on jackit-devel to try and decide
what to do about it.


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