Re: [LAU] OS for realtime operation

On 01/10/12 15:43, gene heskett wrote:
> On Tuesday, January 10, 2012 09:28:12 AM Jeremy Jongepier did opine:
>
>> On 01/10/12 01:07, Diego Simak wrote:
>>> If that kernel is not suitable for you (I mean, you get a lot of
>>> xruns), then you can use the PREEMPT or RT Kernels that are included
>>> in the Official Ubuntu Repositories (which are configured in the apt
>>> sources automatically) and see how it works before going to a manual
>>> kernel compillation.
>>
>> 10.04 does have a real-time kernel in the repos, 2.6.31-rt.
>
> This isn't exactly realtime, where latencies measured in small numbers of
> microseconds count big time.

Hello Gene,

I know, I meant real-time as in patched with the RT patchset.

>
>> But the
>> 2.6.33 real-time kernel from Tango Studio is superior. At least, I
>> didn't have a lot of success with the real-time kernel from the Ubuntu
>> repos while the one from Tango Studios is still going strong.
>> Later versions of Ubuntu do not have a real-time kernel available
>> anymore, only via PPA's. But indeed, with the whole IRQ threading thing
>> being merged in the mainline kernel you could ask yourself, do I really
>> need a real-time kernel. In my case I dare to say yes, haven't done any
>> A-B testing with a low-latency kernel but I get the feeling that I can
>> get the most out of a real-time kernel. That's why I'm thinking about
>> switching to Arch but unfortunately the 3.0 real-time kernel is not
>> stable enough (it crashes on any plug-in that uses the Juce framework,
>> need to file a bugreport).
>
> Get it filed then. The quicker its filed, the quicker it will get fixed
> (if its not Juce's fault that is.)
>

Yup, will do, tonight. I don't have any logs at hand. It's about a 64bit
system though and right now at #opensourcemusicians there are already
some people who have no issues with a 32bit system.

>> Best,
>>
>> Jeremy
>
> Cheers, Gene

Best,

Jeremy
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Received on Tue Jan 10 16:15:03 2012