[linux-audio-user] Re: Status of AMD64 in LAU world? Forced system replacement.

Loki Davison loki.davison at gmail.com
Tue Oct 18 23:57:18 EDT 2005


On 10/19/05, Mark Knecht <markknecht at gmail.com> wrote:
> Sorry about the problems with your systems.
>
> OK, so I've been messing with an AMD64 for maybe 5-6 weeks, probably
> half time. It's hard for me to really recommend it yet, but the
> results are recently pretty positive as far as I've taken them, which
> isn't very far: Note that I didn't start to get a really good kernel
> before last week.
>
> 1) I'm using an HDSP 9652. With the very newest kernels, in my case
> 2.6.14-rc4-rt7 - I'm running at 64/2 with no real xruns for two days
> now. (By real I mean xruns not created by doing things you would never
> do in a session, such as pulling 1394 cables, adding new devices,
> etc.) That siad my wokload has been very light and I've done almost no
> recording so it's pretty untested as of yet.
>
> 2) I've used almost no plugins, which is typical for me, so I cannot
> say that any of that works at all.
>
> 3) A lot of multimedia web stuff doesn't work. I have no idea if
> that's important to you. If you need it you can get away with
> something like Firefox-bin and much of it works. That's not 64-bit
> though. (Doesn't matter to me...)
>
> 4) The memory footprint of pretty much everything is larger so if you
> were used to 512MB consider 768MB or 1GB for equivalent operation.
>
> 5) Basic 1394 support is working pretty well but I don't know about
> FreeBob. I see know reason why it shouldn't work.
>
> 6) My main work is using Ardour and Aqualung. Beyond that it's just
> touch and go with other apps.
>
> As for distro I'm doing this on Gentoo-AMD64-2005.1.
>
> Fernando is working on similar kernels for the Planet, however he and
> I seem to be running into 100% different problems. To me that's a
> little scary as far as recommending anything, but it may be workload
> based...who knows? Obviously his job is much larger and far harder
> than mine.
>
> My motherboard is an Asus A8N-E. I used external 1394 audio drives,
> both 1394a and 1394b, both running from the same OHCI controller. I
> have a 250GB internal SATA drive of which I'm using only about 10GB so
> far...
>
> Hoep this helps, or at least was interesting. ;-)
>
> Cheers,
> Mark
>
>

I'm running amd64 here too. MSI xpress 200 based motherboard, the one
with the ati chipset. Seems to work well for me so far. Though you'll
need a 32 bit build of stuff like mplayer if you want to use win32
codecs. Also stuff like wine/cedega of course need to be 32 bit as
well. All round so far i really haven't had much time to
customise/play with it, as i've been very busy over the last few
months with my thesis, but the system all round seems to be very good.
I wouldn't recommend the xpress 200 chipset under linux for anything
other than 2-d graphics though. 3-d performance is terrible. Luckly
i've got a nvidia card in it now. ;-) Though for 2-d only stuff i'd
think about something with open source drivers.  I'd assume that would
be better for audio work. The system really copes well with a huge
amount of plugins/synths which is really nice, though i had a p3 650
before so it's a bit of a change anyway!

Loki



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