[linux-audio-dev] Re: [Jackit-devel] 2.4.20-rc1ÂÂ + lowlat +preempt + alsa + jack = dead computer

[delire]

audality looks good. we are currently using fmod <http://fmod.org> for a
large games based arts project that sadly had to be win32 due to the
nature of out middleware sponsorship <http://selectparks.net/acmipark.htm>

currently i am using the <http://nevrax.org> NeL engine and hope to
integrate fmod. i am however interested as to whether or not audality
will at some point support www streaming.

also, i've just ordered linux for ps2 dev kit.. looks like fun ;)

julian oliver

http://www.selectparks.net

> On Saturday 07 December 2002 03.58, Fernando Pablo Lopez-Lezcano 
> wrote:
> > > Where are the lowlat and preempt patches for 2.4.20?
> >
> > Not on the net at this point. I have been hand tweaking the
> > originals to patch cleanly (trying to fix the failing chunks). I
> > can email them to you, use at your own risk :-)
> 
> I would be interested in trying your version of the patches. Please 
> mail! :-)
> 
> 
> BTW, I applied the 2.4.19 LL patch to 2.4.20, and got a few rejects 
> in the file system area, which I have not investigated further. 
> (Seems to be a lot of changes around there...) Performance is "ok" 
> under X and proc stress, but I get countless latencies in the whole 
> range up to some 6-8 ms as soon as I start stressing the disk. (This 
> is *with* DMA enabled, of course.)
> 
> Haven't tried preempt yet.
> 
> 
> As to freezing, I've only managed to do that once - and IIRC, that 
> was when trying to instantiate a synth in MusE while Ardour was 
> running in the background. No useful info about what actually 
> happened, and I haven't tested that combination any further.
> 
> Are you certain your freeze is actually happening in kernel space? 
> Tried using watchdog with "ping-pong" between highest and lowest 
> priority SCHED_FIFO threads? (BTW, we should have a watchdog anyway, 
> probably integrated with givertcap or something.)
> 
> 
> //David Olofson - Programmer, Composer, Open Source Advocate
> 
> .- The Return of Audiality! --------------------------------.
> | Free/Open Source Audio Engine for use in Games or Studio. |
> | RT and off-line synth. Scripting. Sample accurate timing. |
> `---------------------------> http://olofson.net/audiality -'
> .- M A I A -------------------------------------------------.
> |    The Multimedia Application Integration Architecture    |
> `----------------------------> http://www.linuxdj.com/maia -'
>    --- http://olofson.net --- http://www.reologica.se ---
> 
> 

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