El Dom 06 May 2007 19:53, Ken Restivo escribió: | On Sun, May 06, 2007 at 12:58:16PM +0300, David Baron wrote: | > Along with (a currently uninstallable rosegarden), the musix reporistory | > was 2.61-rt kernels. Are these with the rt patch applied or are they | > simply with 1000hz timer as some "rt" kernels are? | > | > Anyone used these yet? | | I thought it was RT-patched, downloaded, and found out that it wasn't. | | I ended up building a 2.6.21 with Ingo's RT patch -1, from source. Took | only a short time to build, and worked great. Yay make-kpkg. | | -ken | _______________________________________________ by David Baron May 08, 2007; 02:31pm " These are more relevant: # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT_DESKTOP is not set CONFIG_PREEMPT_RT=y CONFIG_PREEMPT=y CONFIG_PREEMPT_SOFTIRQS=y CONFIG_PREEMPT_HARDIRQS=y CONFIG_PREEMPT_BKL=y # CONFIG_CLASSIC_RCU is not set CONFIG_PREEMPT_RCU=y CONFIG_RCU_TRACE=y The PREEMPT_RT is the main thing of the "rt" patch. The security realtime module is realtime-lsm. Setting this here has no effect since it is not included in the sources but must be compiled seperately. I think the put that here just to tell you it is (in their estimation) obsolete. It still works and I do not have rlimits available. " Thanks, see: 64studio's kernel: cat config-2.6.17-2-multimedia-486 | grep -i preem # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT_DESKTOP is not set CONFIG_PREEMPT_RT=y CONFIG_PREEMPT=y CONFIG_PREEMPT_SOFTIRQS=y CONFIG_PREEMPT_HARDIRQS=y CONFIG_PREEMPT_BKL=y CONFIG_PREEMPT_RCU=y # CONFIG_CRITICAL_PREEMPT_TIMING is not set Ok, this is the Musix's kernel: marcos@4[boot]$ cat config-2.6.21-rt1 | grep -i preem # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT_DESKTOP is not set CONFIG_PREEMPT_RT=y CONFIG_PREEMPT=y CONFIG_PREEMPT_SOFTIRQS=y CONFIG_PREEMPT_HARDIRQS=y CONFIG_PREEMPT_BKL=y CONFIG_PREEMPT_RCU=y # CONFIG_DEBUG_PREEMPT is not set # CONFIG_CRITICAL_PREEMPT_TIMING is not set The only thing I dont see is: CONFIG_RCU_TRACE=y, but it's there: cat config-2.6.21-rt1 | grep -i rcu # CONFIG_CLASSIC_RCU is not set CONFIG_PREEMPT_RCU=y CONFIG_RCU_TRACE=y So, I dont know why did you told the world they are not realtime patched ¿why? Am I missing something here? Just install it and see. But, thanks for your report. On the other hand, we could not build 2.6.21 with aufs and all the RT patches, see: cat config-2.6.21 | grep -i preem # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y CONFIG_PREEMPT_BKL=y # CONFIG_DEBUG_PREEMPT is not set Because of an error related to aufs and realtime patches, the live CD runs this 2.6.21 kernel and you can install 2.6.21-rt from our repositories. But, the performance is not too bad for a Live CD, see: Performance Tests: PC: AMD Duron 1800 (64kb cache: too low!), 384mb RAM, HD 30GB IDE 7200 RPM, Soundcard: SB Live! So: cheap hardware! Not good for this things, but, see: Distro: Live-CD Musix GNU/Linux 1.0-r0b3 Linux Musix 2.6.21 #1 SMP PREEMPT Fri Apr 27 18:08:33 EEST 2007 i686 GNU/Linux Desktop: Icewm + Rox-Filer (Musix's default) Ardour 0.99.3 Recording to HD (IDE, 7200 RMP) I am not using plugins (LADSPA) ----------------------------------- JACK: 5.3 ms latency, 48khz 20 mono tracks: I can play or record 20 mono tracks without problems at all, no xruns, no stop. ----------------------------------- JACK: 2.7 ms latency, 48khz 20 mono tracks: I can play or record 20 mono tracks without problems at all, no xruns, no stop. ------------ Less latency: my SB Live! does not allow me to lower the latency less than 2.7ms when JACK is in Duplex mode, but I can lower it if I choose only playback from the qjackctl setup. ---------------------------------------- JACK: 42,7 ms latency, 48khz 39 mono tracks into Ardour: OK, no xruns... sometimes Ardour stop and says "your machine is not fast enought...etc", but it happends when I move some slider into Ardour or something like this. If I just record or play, there are no problems. I have to do more tests, but it woud be useful to use better hardware for them -- Marcos Guglielmetti * Director del desarrollo de Musix GNU+Linux, 100% Software Libre * Colabora: http://www.musix.org.ar/wiki/index.php/Musix1.0tasks * CD Download: (http://www.musix.org.ar/en/) * Videos, programas, etc.: ftp://musix.ourproject.org/pub/musix/ * Reporte de errores: https://www.musix.org.ar/wiki/index.php?title=Problemas-Bugs *IRC: #musix channel on freenode * http://autosus.wordpress.com/ «No te tomes en serio nada que no te haga reír» [un amigo de E. Galeano] ... tampoco sigas al pie de la letra ninguna de estas frases... _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user
