[Unit] Description=Kernel Samepage Merging ConditionPathExists=/sys/kernel/mm/ksm ConditionVirtualization=no [Service] Type=oneshot RemainAfterExit=yes EnvironmentFile=-/etc/sysconfig/ksm ExecStart=/usr/libexec/ksmctl start ExecStop=/usr/libexec/ksmctl stop [Install] WantedBy=multi-user.target