[Jack-Devel] Fwd: [andraudio] Google I/O: High performance audio talk

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Date	Sun, 19 May 2013 12:06:10 +0200
From	Stéphane Letz <[hidden] at grame dot fr>
To	jack-devel devel <[hidden] at lists dot jackaudio dot org>
Follow-Up	Patrick Shirkey Re: [Jack-Devel] Fwd: [andraudio] Google I/O: High performance audio talk

Début du message réexpédié :

> De : "Patrick Shirkey" <[hidden]>
> Objet : Rép : [andraudio] Google I/O: High performance audio talk
> Date : 19 mai 2013 11:16:02 UTC+02:00
> À : "A discussion list for Android audio developers" <[hidden]>
> Répondre à : A discussion list for Android audio developers <[hidden]>
> 
> 
> On Sun, May 19, 2013 5:59 pm, Felix Homann wrote:
>> The video of the High performance audio talk is now available:
>> 
>> http://www.youtube.com/watch?v=d3kfEeMZ65c&feature=youtube_gdata_player
> 
> 
> That might be the most frustrating thing I have ever seen.
> 
> systrace, mutexes, variable buffer sizes, ringbuffer....  OMFIngG!
> 
> 

Well it seems they are making "some" progress: finally allowing SCHED_FIFO threads for the audio stack, understanding priority inversion issues, how to avoid them..etc…

But I still understand that only their audio stack can create SCHED_FIFO threads for their own needs (so still don't see how a JACK like system that needs to create RT threads for clients could be ported then…) and they still speak about this crazy 5% CPU budget for all audio stuff….

Hum.. iOS still have some huge advantage here.

Stéphane

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