Linux Optimization

1. Improve Boot Time

Use systemd-analyze to check boot time:

systemd-analyze
systemd-analyze blame

Enable parallel booting:

systemctl enable systemd-readahead-collect
systemctl enable systemd-readahead-replay

Remove unused services:

systemctl disable bluetooth
systemctl disable cups

2. Enable Instant Sleep & Wake

sudo systemctl enable sleep.target suspend.target

Enable deep sleep (S3 or modern standby if supported):

cat /sys/power/mem_sleep
echo deep | sudo tee /sys/power/mem_sleep

sudo apt install tlp
sudo systemctl enable tlp

3. Extend Battery Life

sudo tlp start

Enable auto CPU frequency scaling with auto-cpufreq:

git clone https://github.com/AdnanHodzic/auto-cpufreq.git
cd auto-cpufreq && sudo ./auto-cpufreq-installer

Turn off unused ports/devices with powertop:

sudo powertop --auto-tune

4. Wake on Lid Open

Check BIOS/UEFI for “wake on lid” setting. You may also need:

cat /proc/acpi/wakeup
echo LID0 > /proc/acpi/wakeup