power usage optimization

master
Alessandro Mauri 6 years ago
parent 2bece2498f
commit 2c39d09fa6
  1. 38
      linux_general.txt

@ -132,8 +132,8 @@
This is useful as the kernel's built-in random number generator is very slow, as such
it makes tasks like loading the login manager a pain.
To solve this problem you can install some pseudo-random number generators such as:
rng-tools
haveged
"rng-tools" secure, uses more CPU
"haveged" fast and lightweight
NOTE: Keep in mind that these are not for secure systems and remember to start and enable the service
rngd.service
Getting NTFS support working:
@ -312,6 +312,8 @@
Then follow the formatting according to the reference to specify when the command
is executed
# LAPTOP OPTIMIZATION
-Undervolting the CPU:
Refers to:
https://wiki.archlinux.org/index.php/Undervolting_CPU
@ -337,6 +339,30 @@
"unigine-heaven" and the unigine series, although benchmarks they are a great way to stress test
the integrated GPUs of laptops
-i915 (graphics) tweaks:
Refers to: https://gist.github.com/Brainiarc7/aa43570f512906e882ad6cdd835efe57
There are a number of tweaks that can save some watts regarding the integrated graphics card
to enable them you can create a file called "/etc/modprobe.d/i915.conf" containing all of them,
you can get the complete list of available parameters and their description by running
"modinfo -p i915".
The file must be filled following the format:
options i915 "parameter"
Some safe-to-use parameters are:
"enable_fbc=1" enables frame buffer compression
"enable_dc=1" enables power saving
"disable_power_well=0" enables power well
Other parameters may include "enable_psr=1" but that doesn't always work on pre-skylake hardware and on newer
is straight up broken, it also depends on whether or not the display supports it, for further information refer to:
https://hansdegoede.livejournal.com/18653.html
NOTE: as every parameter has the potential to cause weird issues it is recommended to test them first by appending them
to the boot command (either in GRUB, rEFInd or systemd-boot) using the syntax: i915.enable_dc=1
After having enabled the options you can check if they were correctly applied by running "systool -m i915 -av" as root
-General tweaks:
Use "haveged" instead of "rng-tools"
Under KDE uninstall everything PIM or akonadi related
Minimize the number of needed applications and daemons
# NETWORK SECTION
-Gathering information on network cards ie IP, MAC, status, etc.
@ -392,7 +418,7 @@
for example wlan0 becomes wlan0mon
Using iwconfig (useful since first method is not always reliable):
Disable interface using "ifconfig <interface> down" or "ifdown <interface>"
Change to minitor mode with "iwconfig <interface> mode monitor"
Change to monitor mode with "iwconfig <interface> mode monitor"
Re-enable interface with "ifconfig <interface> up" or "ifup <interface>"
To revert it back to managed disable the interface then do "iwconfig <interface> mode managed"
then re-enable the interface
@ -422,6 +448,6 @@
-"ms-office-online" (AUR) the online office suite for 'offline' use
NOTE: needs registration to the Microsoft services
-"maybe" lets you see what a certain command does before it does it, ex "maybe rm -rf /home" lets you see which files will be affected
by rm.
NOTE: this is a python script, to install it use "sudo pip install maybe", the "python-pip" package is required
-"maybe" lets you see what a certain command does before it does it, ex "maybe rm -rf /home" lets you see which files will be affected
by rm.
NOTE: this is a python script, to install it use "sudo pip install maybe", the "python-pip" package is required