[PlanetCCRMA] Finally - a stable low-latency setup with latest rt-kernel and ffado

Matt Marian matt1 at mtmm.ath.cx
Mon Nov 28 19:39:38 PST 2011

First reply was to Orcan individually
who knows this might interest the whole list.

Hi Orcan,

Just a thought, although not technically freezing it.
take a complete disk image of your machine at this point with clonzilla,
so no matter what you have a perfectly perfect recovery point.
I have a fedora 7 DAW that was so perfect, it made me almost cry when I 
lost it.
It just worked so damn well.

anyway it's just a thought.
Happy trails with your music.

Matt Marian

On 11/28/2011 09:30 PM, Orcan Ogetbil wrote:
> On Mon, Nov 28, 2011 at 6:06 AM, Filip Hoško wrote:
>> Hello everybody,
>> I just wanted to report, that after couple of years of trying and
>> tweaking (and waiting, for sure), I was finally able to find a linux
>> setup that will actually perform ok with my M-Audio ProFire 610. I'm
>> able to get really low latencies, under 10ms (about 5ms in Ardour)
>> with NO XRUNS at all. This is for the first time I got such a
>> performance from any linux distro/setup.
>> Just in case anybody would be interested, my actual setup is as follows:
>> PC: laptop Dell Latitude E6400
>> Audio device: M-Audio ProFire 610 (firewire)
>> FW adapter: ESYS EX-6610E express card adapter with Texas Instruments
>> XIO2200A fw chip (the build-in fw adapter in this laptop is Ricoh and
>> it doesn't work much, so you need external fw adapter with a nice TI
>> chip - fortunately the bridge in this laptop is Intel, not Ricoh, so
>> it works well)
>> OS: Fedora 15 64-bit
>> Kernel: 3.0.9-1.rt25.1.fc15.ccrma.x86_64.rt (latest rt)
>> FFADO version: ffado-2.1.0-0.3.20110426.svn1983.fc15 (x86_64) (latest
>> from the repos)
>> JACK: 1.9.7-2.fc15 (x86_64) (from the repos)
>> So this is my system and I'm hoping I'll preserve it in a working
>> condition. BTW, is there a possibility to freeze this config, so to
>> prevent it from becoming unstable/non-functional after an upgrade? Can
>> it be done with YUM, so I can for example freeze the rt-kernel version
>> and ffado-version (and maybe jack too)?
> You can use the line e.g.
>     exclude=kernel,kernel-rt,libffado
> in /etc/yum.conf. Other than this, for those who have firewire issues,
> I made a new libffado build for Fedora 16 with a more recent checkout.
> It is available in the Fedora "updates" repo.
> Cheers,
> Orcan
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