CPU Governor set to power save not performance Ubuntu studio 22.04

[Harvey.Stuart]

Hi All
Just done a quick test on this this system and in power save mode MB shows
many xruns when sitting idle, plus DSP is at 90%.
Setting performance, restarting Jack and all is as it should be.

So we need a way to enable performance from boot.

Any ideas on Ubuntu 22.04 Studio?

Cheers all.

Juust read again post #5 in this thread and add the script in your autostart process wherever they are in your Ubuntu version/variant/mod

[Sthauge]

Hi
If you have a Intel CPU, one thing you can do is turn off CPU hyperthreading. HT is Ok if using eg. MS Word or browsing internet, but have no place in Audio processing.  Audio is number crunching. I have a Intel i7 CPU, it has 8 threads, but two and two threads share one arithmetic unit, this means that before or later you will get constraints on the arithmetic unit and BOOM, you'll get XRUNS. In sessions with high DSP and XRUNs I got 20% less CPU consumption and no XRUNs if I turn HT off.

Steinar ?

[wavesound]

Hi All
So reading these threads It seems I cannot set performance at boot without using a script. 
Using CPU utils  means I have to remember to change this as in using studio controls.

I'll leave myself a note on the monitor.
Cheers All

[sunrat]

Hi All
So reading these threads It seems I cannot set performance at boot without using a script.

Not sure if Ubuntu has cpupower utility but in Debian it's easy:-


Command to put in Autostart:

Code:

/usr/bin/sudo cpupower frequency-set -g performance

And edit sudoers file to allow user to run it:

Code:

#Allow <username> to execute cpupower without password

<username>  ALL=(root) NOPASSWD: /usr/bin/cpupower

Of course replace <username> with your own user name.





I actually have the opposite problem as I use Liquorix kernel which boots to performance by default. Maybe you could try Liquorix kernel.



I have a script called ondemand in ~/bin/ to set ondemand governor when not doing audio:

Code:

#!/bin/bash

/usr/bin/sudo cpupower frequency-set -g ondemand

And a script called performance in ~/bin/ to set performance governor when doing audio:

Code:

#!/bin/bash

/usr/bin/sudo cpupower frequency-set -g performance

And have two .desktop files on the desktop which point to the scripts in ~/bin/ with cute icons to switch between governors like this:

Code:

[Desktop Entry]
Type=Application
Name=ondemand
Comment=Enable ondemand governor
Exec=/home/<username>/bin/ondemand
Icon=/mnt/stash/Pictures/icons/button_headphones.png

Code:

[Desktop Entry]
Type=Application
Name=performance
Comment=Enable performance governor
Exec=/home/<username>/bin/performance
Icon=/mnt/stash/Pictures/icons/button_jetpack.png

[madmaxmiller]

Hi All
So reading these threads It seems I cannot set performance at boot without using a script.

Not sure if Ubuntu has cpupower utility but in Debian it's easy:-


Command to put in Autostart:

Code:

/usr/bin/sudo cpupower frequency-set -g performance

And edit sudoers file to allow user to run it:

...but that's a script. The OP looks for something to click on.
MMM

[Jostein]

...but that's a script. The OP looks for something to click on.
MMM

I use a script triggered by QJackCtl, but also have two widgets that work fine on my systems.

For those who have Intel CPUs, optional with embedded GPU (which might even work for other processors <i don't know), this KDE Plasma widget is cool, but slightly overkill:

• Intel P-state and CPUFreq Manager Widget
  
  I actually have the original, now abandoned version of the widget, but the link above points to the forked,  new and much-improved version.
  

This widget is simple but really great:

• indicator-cpufreq
  
  This is the one I normally use when going to Performance Mode manually.
  

You might or might not have them in your distribution's repo. I'm using Kubuntu 20.04.04 and installed P-state from the source and indicator-cpufreq from the repo.

Enjoy

[madmaxmiller]

...but that's a script. The OP looks for something to click on.
MMM

I use a script triggered by QJackCtl, but also have two widgets that work fine on my systems.

For those who have Intel CPUs, optional with embedded GPU (which might even work for other processors <i don't know), this KDE Plasma widget is cool, but slightly overkill:

• Intel P-state and CPUFreq Manager Widget
  
  I actually have the original, now abandoned version of the widget, but the link above points to the forked,  new and much-improved version.
  

This widget is simple but really great:

• indicator-cpufreq
  
  This is the one I normally use when going to Performance Mode manually.
  

You might or might not have them in your distribution's repo. I'm using Kubuntu 20.04.04 and installed P-state from the source and indicator-cpufreq from the repo.

Enjoy

I once wrote my own clicky-clicky GUI with zenity to switch on/off soundcards (2x Delta 1010LT then), select sample rate and resolution and also CPU power settings. Today I'm lazy and use my add_soundcraft.sh script from the CLI  when I want to add my Soundcraft UI in Jack and I use cpupower-gui in the XFCE panel for the governor as needed. I use the latter far more often to watch 4k movies that I use it for sound production, go figure.
MMM

[sunrat]

[quote pid="60182" dateline="1655769937"]
Command to put in Autostart:

Code:

/usr/bin/sudo cpupower frequency-set -g performance

And edit sudoers file to allow user to run it:

...but that's a script. The OP looks for something to click on.
MMM
[/quote]


It's a command. One can put it in a script if one wishes, or just put it as a command in Autostart. I followed it with a way to put nice clicky icons on the desktop to select governor. Although if I reinstalled the system I'd probably just use cpupower-gui like you.

Edit - can't work out why the quote tags are screwed up in this post. This board is weird sometimes.

[Holger]

sudo apt install cpufrequtils
sudo vi /etc/init.d/cpufrequtils
and set
ENABLE="true"
GOVERNOR="performance"

That's it - at least for me ;-)

[madmaxmiller]

I'm just figuring how esoteric this must sound for a Windows user
MMM