Low RAM Servers - LeandroTheDev/arch_linux GitHub Wiki

SWAP usage

  • Force usage of memory swap even if the process doesn't like it
echo "vm.overcommit_memory=1" | sudo tee /etc/sysctl.d/99-overcommit.conf
  • Force memory SWAP usage to the limits
echo "vm.swappiness=100" | sudo tee /etc/sysctl.d/99-swappiness.conf
  • View configs: sudo sysctl --system

RESET

echo "vm.overcommit_memory=0" | sudo tee /etc/sysctl.d/99-overcommit.conf
echo "vm.swappiness=60" | sudo tee /etc/sysctl.d/99-swappiness.conf

ZRAM

Compress ram to reduce the size

  • sudo pacman -S zram-generator
  • sudo vim /etc/systemd/zram-generator.conf
[zram0]
zram-size = ram / 2
compression-algorithm = zstd
  • sudo systemctl daemon-reexec
  • sudo systemctl start dev-zram0.swap

  • Please check if everthing is ok with the system after enabling, if is ok, them use enable instead of start to automatically run in system boot