On Mon, Aug 31, 2020 at 7:17 AM Roger <gurusonic@gmail.com> wrote:

I'm just experimenting with new setups of Debian for audio. When running
RealtimeConfigQuickScan it triggered a vague recollection of a
discussion (here?) that configuring hpet and rtc timers is no longer
necessary as they are not used any more. Is this true or am I
misremembering?

The wiki guide at https://wiki.linuxaudio.org/wiki/system_configuration
is still a goldmine for setup but it contains some sections of which I
am unsure whether they are still applicable, including the HW timers bit.

Hmm...doing similar, but, I can't get the cpu frequency to stay set between boots...

I get around that by using Liquorix kernel which I think is hard coded to use performance governor. The wiki doesn't mention what to do if scaling driver is intel_pstate although from reading it's possible to disable that and load acpi-cpufreq scaling driver instead which is needed to be able to set the governor to performance AFAIK. There are several pertinent questions on StackOverflow discussing that, like - https://stackoverflow.com/questions/53349933/specify-cpu-frequency-as-a-kernel-cmd-line-parameter-of-linux-on-boot/53356512

Back to HW timers, it's trivial to set them as explained in the wiki, but I'm just wondering if they are actually still used?