Compressed RAM-backed swap. Faster than disk swap, reduces I/O.
Installation #
sudo apt install systemd-zram-generator
Configuration #
[zram0]
zram-size = ram / 2
compression-algorithm = zstd
Service #
sudo systemctl enable --now systemd-zram-setup@zram0
Verify #
zramctl
swapon --show
Teardown #
sudo swapoff /dev/zram0
sudo zramctl -r /dev/zram0