[arch-general] audio realtime, was: /usr/bin/X: No such file
Sorry some additional Arch Linux newbie questions ;) -----Ursprüngliche Nachricht----- Von: arch-general-bounces@archlinux.org im Auftrag von Ionut Biru Gesendet: So 12/11/2011 16:19
AUR is your friend.
nvidia-lts for kernel26-lts is in extra. nvidia-rt from aur nvidia-$yourcrappykerly from aur
http://aur.archlinux.org/packages.php?ID=12132 Dependencies: linux-rt>=3.0.0 linux-rt<3.2.0 nvidia-utils=285.05.09 So if I build a kernel myself, not by using pacman or PKGBUILD I need to add some kind of dummy package? I'll test one of those kernels from https://wiki.archlinux.org/index.php/Pro_Audio#Realtime_Kernel but usually I'm using my self build kernels only. Btw. I can't agree with "Tickless, CONFIG_NO_HZ, i.e "dynticks", or "dynamic ticks", is said to interfere with realtime (though the extent may not be noticeable)." it reduces audible MIDI jitter on my machine. Dunno how PKGBUILD works (I'll find out soon), but reading https://aur.archlinux.org/packages/li/linux-rt/PKGBUILD I can e.g. use make oldconfig, but "# remove the sublevel from Makefile # this ensures our kernel version is always 3.X-ARCH # this way, minor kernel updates will not break external modules" What if I need e.g. 3.0.12-rt30-test1 and 3.0.12-rt30-test2 with different configs? Is there something equivalent to Debian's equivs? http://www.debian.org/doc/manuals/apt-howto/ch-helpers.en.html E.g. to remove pulseaudio, which was installed as dependency of xfce4, or to install a self build, selected version of jack2 and to keep dependencies. I couldn't find Jack2 64-bit (searching the Internet from a Suse install, didn't run packman)?! Anyway, 32-bit seems to be 1.9.7 and I need 1.9.8, because I need the -Xalsarawmidi option. Using this option in combination with a2jmidi_bridge I don't have any audible MIDI jitter.
grep audio /media/archlinux/etc/security/limits.conf @audio - rtprio 65 @audio - nice -10 @audio - memlock 40000
If I edit this to different values, e.g. http://jackaudio.org/linux_rt_config , could it be overwritten by a package upgrade? Cheers! Ralf
On Sun, Dec 11, 2011 at 9:39 AM, Ralf Mardorf <ralf.mardorf@alice-dsl.net> wrote:
grep audio /media/archlinux/etc/security/limits.conf @audio - rtprio 65 @audio - nice -10 @audio - memlock 40000
A recent jack update sets those limits for you. Do not set nice value. I'd recommend this: @audio - rtprio 99 @audio - memlock unlimited If you're looking for linux 3.0.12-rt30 and you happen to have a recent intel processor (icore): http://bbarros.com/archstudio/
-----Ursprüngliche Nachricht----- Von: arch-general-bounces@archlinux.org im Auftrag von Bernardo Barros Gesendet: So 12/11/2011 18:44 An: General Discussion about Arch Linux Betreff: Re: [arch-general] audio realtime, was: /usr/bin/X: No such file On Sun, Dec 11, 2011 at 9:39 AM, Ralf Mardorf <ralf.mardorf@alice-dsl.net> wrote:
grep audio /media/archlinux/etc/security/limits.conf @audio - rtprio 65 @audio - nice -10 @audio - memlock 40000
A recent jack update sets those limits for you. Do not set nice value. I'd recommend this: @audio - rtprio 99 @audio - memlock unlimited If you're looking for linux 3.0.12-rt30 and you happen to have a recent intel processor (icore): http://bbarros.com/archstudio/ +++ I never ever would set such values. This value with nice is the default on my Arch Linux install, NOT EDITED BY ME. The settings you recommend are the settings I already posted with this link http://jackaudio.org/linux_rt_config ;). It's important for me to set up my machine myself, regarding to audio. If I e.g. would use a basic rtirq, my RME sound card would have a lower priority than my two Envy24 cards, that are used as additional MIDInterfaces. Of cause http://bbarros.com/archstudio/ is interesting, but how do I keep dependencies if I e.g. compile my own kernel-rt, jack2, ardour3 with video timeline etc.? - Ralf
On 12 December 2011 01:44, Bernardo Barros <bernardobarros2@gmail.com> wrote:
On Sun, Dec 11, 2011 at 9:39 AM, Ralf Mardorf <ralf.mardorf@alice-dsl.net> wrote:
grep audio /media/archlinux/etc/security/limits.conf @audio - rtprio 65 @audio - nice -10 @audio - memlock 40000
A recent jack update sets those limits for you.
And also it doesn't matter what is there in limits.conf - they'll simply be overriden by those in limits.d. So things should just work, theoretically. -- GPG/PGP ID: C0711BF1
On 12/11/2011 07:39 PM, Ralf Mardorf wrote:
Sorry some additional Arch Linux newbie questions ;)
-----Ursprüngliche Nachricht----- Von: arch-general-bounces@archlinux.org im Auftrag von Ionut Biru Gesendet: So 12/11/2011 16:19
AUR is your friend.
nvidia-lts for kernel26-lts is in extra. nvidia-rt from aur nvidia-$yourcrappykerly from aur
http://aur.archlinux.org/packages.php?ID=12132
Dependencies: linux-rt>=3.0.0 linux-rt<3.2.0 nvidia-utils=285.05.09
So if I build a kernel myself, not by using pacman or PKGBUILD I need to add some kind of dummy package?
is called nvidia-all
Cheers!
Ralf
-- Ionuț
So if I build a kernel myself, not by using pacman or PKGBUILD I need to add some kind of dummy package?
is called nvidia-all +++ Thank you :) - Ralf
download from AUR and adapt the packages with your custom options you can then compile your custom linux and ardour packages yourself and install with pacman, that is safer then `make installing`
On 12 December 2011 01:39, Ralf Mardorf <ralf.mardorf@alice-dsl.net> wrote:
Btw. I can't agree with "Tickless, CONFIG_NO_HZ, i.e "dynticks", or "dynamic ticks", is said to interfere with realtime (though the extent may not be noticeable)." it reduces audible MIDI jitter on my machine.
And I have heard it increases xruns on other machines :) You can just enable it in the config. -- GPG/PGP ID: C0711BF1
participants (4)
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Bernardo Barros
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Ionut Biru
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Ralf Mardorf
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Ray Rashif