Re: [Jack-Devel] intel_pstate vs. jack?

On 02/28/2014 11:55 AM, Christian Schoenebeck wrote:
> On Friday 28 February 2014 01:47:02 Fernando Lopez-Lezcano wrote:
>> To make the story short, I used to change the cpu frequency governor to
>> "performance" and set the frequencies to the maximum to get the best out
>> of jack. I have read many of you have no problems using jack with
>> frequency scaling active, but that has not been my experience. But I was
>> surprised to find the frequencies fluctuating even after telling my
>> computer to not change them... sigh...
> 
> CPU scaling very often leads to xruns. However I wondered, has somebody 
> investigated this issue in depth already?
> 
> I mean, it seems as if Macbooks are also using CPU scaling, still providing 
> very solid low latency stability with its XNU kernel. So I wonder if CPU 
> scaling is not appropriately handled (regarding the aspect of low latency) in 
> the Linux kernel. Any thoughts?
> 
> Best regards,
> Christian Schoenebeck

Hi Christian,

You might want to check out http://rg42.org/oss/jackfreqd/start

Bye,

Jeremy

1393691694.13033_0.ltw:2,a <53120C24.8090305 at autostatic dot com>