Using zRAM on Deepin system

1. Save this as debian-install-zram.sh:

	#!/bin/bash #
	not_root() {
	echo "ERROR: You have to be root to execute this script"
	exit 1
	}
	zram_exists() {
	echo "ERROR: /etc/init.d/zram already exists"
	exit 1
	}
	# Check if user is root
	[ $EUID != 0 ] && not_root
	# Check if zram file already exists
	[ -f /etc/init.d/zram ] && zram_exists
	cat >/etc/init.d/zram <<EOL
	#!/bin/sh
	### BEGIN INIT INFO
	# Provides: zram
	# Required-Start: $local_fs
	# Required-Stop: $local_fs
	# Default-Start: S
	# Default-Stop: 0 1 6
	# Short-Description: Use compressed RAM as in-memory swap
	# Description: Use compressed RAM as in-memory swap
	### END INIT INFO
	# Author: Antonio Galea <antonio.galea@gmail.com>
	# Thanks to Przemysław Tomczyk for suggesting swapoff parallelization
	FRACTION=75
	MEMORY=\`perl -ne'/^MemTotal:\s+(\d+)/ && print \$1*1024;' < /proc/meminfo\`
	CPUS=\`grep -c processor /proc/cpuinfo\`
	SIZE=\$(( MEMORY * FRACTION / 100 / CPUS ))
	case "\$1" in
	"start")
	param=\`modinfo zram|grep num_devices|cut -f2 -d:|tr -d ' '\`
	modprobe zram \$param=\$CPUS
	for n in \`seq \$CPUS\`; do
	i=\$((n - 1))
	echo \$SIZE > /sys/block/zram\$i/disksize
	mkswap /dev/zram\$i
	swapon /dev/zram\$i -p 10
	done
	;;
	"stop")
	for n in \`seq \$CPUS\`; do
	i=$((n - 1))
	swapoff /dev/zram\$i && echo "disabled disk \$n of \$CPUS" &
	done
	wait
	sleep .5
	modprobe -r zram
	;;
	*)
	echo "Usage: \`basename \$0\` (start | stop)"
	exit 1
	;;
	esac
	EOL
	chmod +x /etc/init.d/zram
	insserv zram
	/etc/init.d/zram start
	exit 0

2. Run these commands:

sudo su

. debian-install-zram.sh

3. Check it out:

cat /proc/swaps

4. Usage:

sudo su
/etc/init.d/zram start|stop

Copy from https://gist.github.com/Zerogiven/5a2fcfd6aeda2fe3eb9b




For Ubuntu:
sudo apt install zram-config
reboot
cat /proc/swaps