[LAU] Hardware timers?

[Roger]

On 2/9/20 4:14 am, Mac wrote:
>
>
> On Mon, Aug 31, 2020 at 7:17 AM Roger <gurusonic at gmail.com 
> <mailto:gurusonic at 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?



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