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Tune Raspberry Pi for audio
#!/usr/bin/env sh
# Install utils for cpu freq
sudo apt-get install cpufrequtils
sudo cpufreq-set -r -g performance
sudo echo "ENABLE="true"
GOVERNOR="performance"
MAX_SPEED="0"
MIN_SPEED="0" " | sudo tee -a /etc/default/cpufrequtils
# Install other useful tools
sudo apt-get install htop git perl vim
# Set CPU governor
sudo sed -i 's/exit 0/sudo cpufreq-set -r -g performance/g' /etc/rc.local
sudo echo "exit 0" | sudo tee -a /etc/rc.local
# Set realtime priority and memlock
sudo echo "
@audio nice -15
@audio - rtprio 90 # maximum realtime priority
@audio - memlock unlimited # maximum locked-in-memory address space (KB)
" | sudo tee -a /etc/security/limits.conf
# Set swappiness
# This setting changes the so-called swappiness of your system,
# or in other words, the moment when your system starts to use its swap partition.
sudo echo "
vm.swappiness = 10
fs.inotify.max_user_watches = 524288
" | sudo tee /etc/sysctl.conf
@scientificsound
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scientificsound commented Jun 21, 2020

Hi Mads,
That worked, thanks so much!

That shoulda been obvious I suppose, I was slowly getting there... ha

cheers,
-eric

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