Setup a new ubuntu machine for performance

setup.sh

#!/bin/bash

set -e

##
# CPU scaling_governor=performance
##

printf 'Setting scaling_governor to performance... '
echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor > /dev/null
if ! (sudo crontab -l | grep -Fq 'echo performance | tee' > /dev/null) ; then
	(
		sudo crontab -l
		echo '* * * * * /bin/bash -c "echo performance | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor"'
	) | sudo crontab -
fi
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor | awk '$1!="performance"{exit 1}' && echo 'OK.' || echo 'ERROR.'

##
# Install preload
##

printf 'Installing preload... '
sudo apt install -y preload &> /dev/null && echo 'OK.' || echo 'ERROR.'

##
# Install rng-tools & haveged
##

printf 'Installing rng-tools & haveged... '
sudo apt install -y haveged rng-tools &> /dev/null && echo 'OK.' || echo 'ERROR.'


##
# Fix gnome-calculator
##

printf 'Fixing calculator app... '
(sudo snap remove gnome-calculator && sudo apt install -y gnome-calculator) &> /dev/null && echo 'OK.' || echo 'ERROR.'

##
# Mount root filesystem with noatime
##

printf 'Setting root filesystem with noatime mount option... '
awk '$2=="/"{if($4~/noatime/){print}else{$4=$4",noatime"; print}} $2!="/"{print}' /etc/fstab > /tmp/fstab
sudo mv -f /tmp/fstab /etc/fstab
awk '$2=="/"{if(!($4~/noatime/)){exit 1}}' /etc/fstab && echo 'OK.' || echo 'ERROR.'

##
# Mount /tmp as tmpfs
##

printf 'Setting /tmp to be a tmpfs filesystem... '
awk 'BEGIN{done=0} $2=="/tmp"{print; done=1} $2!="/tmp"{print} END{if(done==0){print "tmpfs /tmp tmpfs rw,nosuid,nodev 0 0"}}' /etc/fstab > /tmp/fstab
sudo mv -f /tmp/fstab /etc/fstab
awk '$2=="/tmp"{if(!($1~/tmpfs/)){exit 1}}' /etc/fstab && echo 'OK.' || echo 'ERROR.'

##
# BBR algorithm for TCP congestion control
##

printf 'Setting TCP congestion control to BBR... '
if ! (sysctl 'net.core.default_qdisc' | grep -q 'fq' && sysctl 'net.ipv4.tcp_congestion_control' | grep -q 'bbr') ; then
	echo 'net.core.default_qdisc=fq' | sudo tee -a /etc/sysctl.conf > /dev/null
	echo 'net.ipv4.tcp_congestion_control=bbr' | sudo tee -a /etc/sysctl.conf > /dev/null
	sudo sysctl -p > /dev/null
fi
sysctl 'net.core.default_qdisc' | grep -q 'fq' && sysctl 'net.ipv4.tcp_congestion_control' | grep -q 'bbr' && echo 'OK.' || echo 'ERROR.'

##
# Lowering swappiness
##

printf 'Lowering swappiness... '
if ! (sysctl 'vm.swappiness' | grep -q '10') ; then
	echo 'vm.swappiness=10' | sudo tee -a /etc/sysctl.conf > /dev/null	
	sudo sysctl -p > /dev/null
fi
sysctl 'vm.swappiness' | grep -q '10' && echo 'OK.' || echo 'ERROR.'

##
# GNOME animations
##

printf 'Disabling GNOME animations... '
gsettings set org.gnome.desktop.interface enable-animations false
gsettings get org.gnome.desktop.interface enable-animations | grep -q false && echo 'OK.' || echo 'ERROR.'

##
# GNOME external search providors
##

printf 'Disabling GNOME external search providors... '
gsettings set org.gnome.desktop.search-providers disable-external true
gsettings get org.gnome.desktop.search-providers disable-external | grep -q true && echo 'OK.' || echo 'ERROR.'

echo
echo 'Done. Please reboot for all changes to take effect.'

setup_laptop.sh

#!/bin/bash

set -e

##
# Better power management for laptops
##

printf 'Installing tlp... '
sudo apt install -y tlp &> /dev/null && echo 'OK.' || echo 'ERROR.'

##
# Install preload
##

printf 'Installing preload... '
sudo apt install -y preload &> /dev/null && echo 'OK.' || echo 'ERROR.'

##
# Install rng-tools & haveged
##

printf 'Installing rng-tools & haveged... '
sudo apt install -y haveged rng-tools &> /dev/null && echo 'OK.' || echo 'ERROR.'


##
# Fix gnome-calculator
##

printf 'Fixing calculator app... '
(sudo snap remove gnome-calculator && sudo apt install -y gnome-calculator) &> /dev/null && echo 'OK.' || echo 'ERROR.'

##
# Mount root filesystem with noatime
##

printf 'Setting root filesystem with noatime mount option... '
awk '$2=="/"{if($4~/noatime/){print}else{$4=$4",noatime"; print}} $2!="/"{print}' /etc/fstab > /tmp/fstab
sudo mv -f /tmp/fstab /etc/fstab
awk '$2=="/"{if(!($4~/noatime/)){exit 1}}' /etc/fstab && echo 'OK.' || echo 'ERROR.'

##
# Mount /tmp as tmpfs
##

printf 'Setting /tmp to be a tmpfs filesystem... '
awk 'BEGIN{done=0} $2=="/tmp"{print; done=1} $2!="/tmp"{print} END{if(done==0){print "tmpfs /tmp tmpfs rw,nosuid,nodev 0 0"}}' /etc/fstab > /tmp/fstab
sudo mv -f /tmp/fstab /etc/fstab
awk '$2=="/tmp"{if(!($1~/tmpfs/)){exit 1}}' /etc/fstab && echo 'OK.' || echo 'ERROR.'

##
# BBR algorithm for TCP congestion control
##

printf 'Setting TCP congestion control to BBR... '
if ! (sysctl 'net.core.default_qdisc' | grep -q 'fq' && sysctl 'net.ipv4.tcp_congestion_control' | grep -q 'bbr') ; then
	echo 'net.core.default_qdisc=fq' | sudo tee -a /etc/sysctl.conf > /dev/null
	echo 'net.ipv4.tcp_congestion_control=bbr' | sudo tee -a /etc/sysctl.conf > /dev/null
	sudo sysctl -p > /dev/null
fi
sysctl 'net.core.default_qdisc' | grep -q 'fq' && sysctl 'net.ipv4.tcp_congestion_control' | grep -q 'bbr' && echo 'OK.' || echo 'ERROR.'

##
# Lowering swappiness
##

printf 'Lowering swappiness... '
if ! (sysctl 'vm.swappiness' | grep -q '10') ; then
	echo 'vm.swappiness=10' | sudo tee -a /etc/sysctl.conf > /dev/null	
	sudo sysctl -p > /dev/null
fi
sysctl 'vm.swappiness' | grep -q '10' && echo 'OK.' || echo 'ERROR.'

##
# GNOME animations
##

printf 'Disabling GNOME animations... '
gsettings set org.gnome.desktop.interface enable-animations false
gsettings get org.gnome.desktop.interface enable-animations | grep -q false && echo 'OK.' || echo 'ERROR.'

##
# GNOME external search providors
##

printf 'Disabling GNOME external search providors... '
gsettings set org.gnome.desktop.search-providers disable-external true
gsettings get org.gnome.desktop.search-providers disable-external | grep -q true && echo 'OK.' || echo 'ERROR.'

echo
echo 'Done. Please reboot for all changes to take effect.'

Execute:

curl -SsL https://gist.githubusercontent.com/assafmo/15814a044ddb75c093adf628c51c0d50/raw/setup.sh | bash

For laptops:

curl -SsL https://gist.githubusercontent.com/assafmo/15814a044ddb75c093adf628c51c0d50/raw/setup_laptop.sh | bash

https://itsfoss.com/reduce-overheating-laptops-linux/