[Unit]
Description=Kernel Samepage Merging
ConditionPathExists=/sys/kernel/mm/ksm
ConditionVirtualization=no

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/bash -c "echo 1 > /sys/kernel/mm/ksm/run"
ExecStop=/bin/bash -c "echo 0 > /sys/kernel/mm/ksm/run"

[Install]
WantedBy=multi-user.target