Re: [linux-audio-user] Kernel 2.6.15.3-rt tests

Just to say that I repeated the same tests with 2.6.13-1-multimedia-386
 from DeMuDi and the results are the same, but the system did not got
_totally_ paralyzed when i used ardour+jamin with jackd's 128 buffer:
it went super slow, unusable, but it did not got paralyzed in this
situation.

El Domingo, 12 de Febrero de 2006 01:15, Marcos Guglielmetti escribió:
> Hi,
>
>         I am working with this kernel right now. I compiled it into
> my GNU Linux box (Musix 0.30) following:
> http://ubuntustudio.com/wiki/index.php/Breezy:Vanilla_Kernel_With_Rea
>ltime_Preemption
>
>  And it works fine, but with a few "bugs" or problems.
>
> You can download it from:
>
> http://www.k-maleon.com/musix/deb
>
> Tests:
>
> PC Duron 1800Mhz, 120Mb RAM, HD 7200 RPM, SB Live!
>
> sáb feb 11 18:34:03 CET 2006
>
> Kernel: Musix GNU/Linux, kernel 2.6.15.3-rt-musix-2006-11-02
>
> *rtirq works normally
> *Normal users can use RT
>
> *With:
> /usr/bin/jackd -R -P89 -t1000 -m -dalsa -dhw:0 -r44100 -p512 -n2 -s
> -S -i1
>
>     * Good: Ardour with 7 tracks and a lot of LADSPA FX: it worked
> well enough, using jackd in duplex and play only mode (with a 512
> buffer, 44100Hz)
>
>     * BAD: into this session, I opened JAMIN and all the system went
> very slow. Then I restarted jack into play only mode and it worked
> well: I could master the tracks connected to Jamin from Ardour
> outputs.
>
> lesser buffer size:
>
>     * Regular: JAMIN, jackd duplex, buffer 256, it works fine, but
> whe i opened ardour: 4 (28) xruns while the hard disk was
> reading/writing. I think that with more ram than my little 120Mb it
> can do it much better.
>
>     * Fine: jack: 48000 Hz, 1024 or 128 buffer (46ms latency or 5ms
> latency), play only mode, Ardour with 7 tracks: NO XRUNs at all.
>
> I opened Jamin and all goes well with 1024 buffer, but with the 128
> buffer the system just got paralyzed.
>
> Hope it can help or serve you.
>
> Musix uses the DeMuDi kernel (when installed on HD).
>
> I'm needing to make a RT kernel that could boot from the Live-CD out
> of the box, so I am experimenting with it. I could not compile
> unionfs, but I will try again in these days.
>
> Cheers,

-- 
Marcos Guglielmetti  
Coordinador del desarrollo de Musix GNU+Linux 
(www.musix.org.ar) 
Mirrors: (www.musix.distrux.net) (www.pc-musica.com.ar/musix) 
(www.k-maleon.com/musix)
	
	
		
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