Re: [LAD] JackMixDesk

Paul Davis schrieb:
> 2009/5/26 Ulrich Lorenz Schlüter <audio-mobster@email-addr-hidden>:
>
>> Jens M Andreasen schrieb:
>>
>>> On Tue, 2009-05-26 at 21:34 +0200, Ulrich Lorenz Schlüter wrote:
>>>
>>>
>>>
>>>>> What does this thread do?
>>>>>
>>>>>
>>>>>
>>>>>
>>>> The thread is calculating all the gains every 100 nanoseconds.
>>>>
>>>>
>>> Oh! It could be that the implementation of nanosleep() has changed then.
>>> At that rate you cannot meet deadlines reliable without hugging on to
>>> the processor, which would then explain why CPU has gone way up for you.
>>>
>>>
>>> /j
>>>
>>> [Seriously, You really are sampling at 10MHz?]
>>>
>>>
>>>
>>>
>> I'll get rid of it although it wasn't any cpu consuming on my old
>> system. 10MHz oops that's not what I wanted.
>>
>
> note: for GUI purposes, given that your display only redraws at
> between 60Hz and 100Hz, there is little point in computing values for
> display at frequencies much above this. the simplest technique is to
> compute them once per jack_process() cycle and stuff the results into
> a suitably sized ringbuffer where the GUI will read them. the GUI just
> grabs all available values and uses the most recent one.
>
>
Absolutely right. My intention was to compute the values less often than
on each jack_process() cycle. So no lack of stupidity on my side.

Thanks for your kind help
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Received on Thu May 28 00:15:03 2009