On Sat, 06 May 2017 22:24:29 +0200, David Kastrup wrote:
dak@lola:~$ ps ax k priority -o priority,comm |grep
irq
-91 irq/8-rtc0
-81 irq/17-firewire
-71 irq/32-snd_hda_
[snip]
20 irqbalance
Looks like somebody is prioritizing my soundcards.
Much likely it's Rui's rtirq script. For what ever reason Ubuntu
keeps it in init.d and doesn't start it by a systemd unit.
http://packages.ubuntu.com/yakkety/rtirq-init
Instead of ps, you could run
/etc/init.d/rtirq status
I can't speak for your computer, but usually rtc shouldn't be
prioritised anymore and irqbalance should be completely removed.
First stay with rtc prioritised, but uninstall irqbalance.
https://wiki.archlinux.org/index.php/Professional_audio#Tips_and_Tricks
Take a look at /etc/default/rtirq (on Arch Linux
it's /etc/conf.d/rtirq ;):
[rocketmouse@archlinux ~]$ grep RTIRQ_NAME_LIST /etc/conf.d/rtirq | grep -v "#"
RTIRQ_NAME_LIST="usb snd_hdsp snd_ice1"
The name list doesn't contain rtc and i8042 anymore. My mouse is an USB
mouse, but the keyboard still is PS/2.
Check the output of
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
Perhaps setting it to performance helps to reduce xruns
echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
Regards,
Ralf