[ubuntu-studio-users] latency question

Ralf Mardorf ralf.mardorf at alice-dsl.net
Sun Jan 31 21:22:30 UTC 2016

On Sun, 31 Jan 2016 21:31:54 +0100, Roy Damen wrote:
>1000 Hz? Will this make that much difference for the latency?

AFAIK it doesn't matter. IIRC audio and MIDI are independent from the
chosen HZ value, regarding some improvements. Keywords to search
linux audio websites could be TSC, HPET/HR timer, tickless. At least
RTC is removed from rtirq's default config.

[rocketmouse at archlinux ~]$ grep NO_HZ /mnt/moonstudio/boot/config-4.2.0-25-lowlatency 
# CONFIG_NO_HZ_FULL is not set
[rocketmouse at archlinux ~]$ grep HRTIMER /mnt/moonstudio/boot/config-4.2.0-25-lowlatency 
[rocketmouse at archlinux ~]$ grep E_LIST /mnt/moonstudio/etc/default/rtirq 
# RTIRQ_NAME_LIST="rtc snd usb i8042" # old
RTIRQ_NAME_LIST="snd_hdsp snd_ice1"

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