[LAU] OnDemand-performance was(OT: klang)

Len Ovens len at ovenwerks.net
Sun Aug 5 21:18:03 UTC 2012

On Sun, August 5, 2012 1:54 pm, Robin Gareus wrote:
> On 08/05/2012 10:46 PM, Ralf Mardorf wrote:
>> On Sun, 2012-08-05 at 22:20 +0200, Robin Gareus wrote:
>>> I really wonder why you are all raving about this.
>> Take a look at your own NB [1].
> That's why there's jackfreqd.

I did look at jackfreqd, which according to it's author has a high
hysteresis which in effect turns full speed on almost when jackd starts
and keeps it there till it ends... it even mentions that at jack startup
there may be one xrun as the speed ramps. So for having yet another
process running, I can get the same thing I get by having jackd run a
script at startup that puts the machine in performance mode and quites...
no extra process running while I am doing audio either.

really, any tweak is an as needed thing, not for everyone, but the
knowledge is there if needed.

"on modern machines" I have two things to say... my more modern year old
machine has more problems than my 8 year old machine does.... second, I
don't replace machines just because something new is out. there is enough
churn in the world as is. (end of rant- sorry)

> This is an edge case and very hard to reproduce and very unlikely to
> cause any issue to normal users (Sorry Nando, you and your setup at
> CCRMA don't qualify as /normal/. It's an awesome setup).
> NTL, you could have left the link to http://rg42.org/oss/jackfreqd/
> here. It's piece of software that can work around the described problem.

It is also true on lower end machines. Perhaps less of an edge case.

Len Ovens

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