Re: [LAU] Realtime, but many xruns when jack is started. Debian Etch

Rui Nuno Capela escribió:
> Roman Muñoz wrote:
>
>> So you are getting no more xruns now? That is the real point... After
>> reading it, I would say that rtirq is a much more polished script than
>> ours. However it does not look as setting the rtc irq frequency as
>> explained on Florian's website.
>>
>> In short:
>>
>> a) please download tarball linked from musix blog.
>> b) untar it.
>> c) mv rtirq.sh /etc/init.d/rtirq
>> d) mv rtirq.conf /etc/default/rtirq
>> e) update-rc.d rtirq start 99 2 3 4 5 . stop 0 1 6 .
>> f) it should work at startup on any debian distro
>>
>>
>
> all of the above is probably correct, but there's one important thing
> missing: as the configuration file is there located in
> /etc/sdefault/rtirq instead of the original /etc/sysconfig/rtirq,
> one has to edit the /etc/init.d/rtirq script and, somewhere near line
> 42, where it reads:
>
> RTIRQ_CONFIG=/etc/sysconfig/rtirq
>
> please change to
>
> RTIRQ_CONFIG=/etc/default/rtirq
>
> now it should work as advertised (not:)
>

Oops... I downloaded it again and found that you're of course right. Sorry.
> ah, yet another thingie; it has been noted from some folks, specially
> found dealing with ubuntu, that the very first line of the same script
> should be tweaked, where it reads:
>
> #!/bin/sh
>
> should be
>
> #!/bin/bash
>

No problem with /bin/sh here (debian etch)
> finally, the rtirq script is just about tunning the irq threading
> priorities as found on PREEMPT_RT patched karnels (aka Ingo Molnar's -rt
> patchset). it does not have any regard to the rtc frequency setting (but
> would be handy, nevertheless:
>
> moreover, rtirq has also some legacy support for PREEMPT_DESKTOP
> configured kernels, where one has the option of having some of the irqs
> non-threaded (thus RTIRQ_NON_THREADED configuration purpose), iirc. this
> is not a option on PREEMPT_RT (aka full complete real-time)
>
OK, many thanks for this last point that I was not getting right.

Best regards,
Roman

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Received on Mon Oct 8 00:15:02 2007