| #!/bin/sh␊ |
| #␊ |
| # Author: ␉ Marin Atanasov Nikolov <dnaeon@gmail.com>␊ |
| #␊ |
| ### BEGIN INIT INFO␊ |
| # Provides: ksm␊ |
| # Required-Start: ␊ |
| # Required-Stop:␊ |
| # X-Start-Before: ␊ |
| # Default-Start: 2 3 4 5␊ |
| # Default-Stop: 0 1 6 ␊ |
| # Short-Description: Enable and disable KVM KSM␊ |
| # Description: Enables and disables the KVM Kernel Samepage Merging␊ |
| #␉␉ feature of the kernel␊ |
| ### END INIT INFO␊ |
| ␊ |
| set -e␊ |
| ␊ |
| . /lib/lsb/init-functions␊ |
| ␊ |
| do_start() {␊ |
| echo 1 > /sys/kernel/mm/ksm/run␊ |
| log_success_msg "Enabling Kernel Samepage Merging"␊ |
| }␊ |
| ␊ |
| do_stop() {␊ |
| echo 0 > /sys/kernel/mm/ksm/run␊ |
| log_success_msg "Disabling Kernel Samepage Merging"␊ |
| }␊ |
| ␊ |
| do_status() {␊ |
| local ksm_status␊ |
| ksm_status=$( cat /sys/kernel/mm/ksm/run )␊ |
| ␊ |
| if [ ${ksm_status} -eq 1 ]; then␊ |
| ␉log_success_msg "Kernel Samepage Merging is enabled"␊ |
| else␊ |
| ␉log_success_msg "Kernel Samepage Merging is disabled"␊ |
| fi␊ |
| }␊ |
| ␊ |
| case "${1}" in␊ |
| start)␊ |
| do_start␊ |
| ;;␊ |
| reset|stop)␊ |
| do_stop␊ |
| ;;␊ |
| status)␊ |
| ␉do_status␊ |
| ␉;;␊ |
| reload|restart|force-reload)␊ |
| ␉do_stop␊ |
| do_start␊ |
| ;;␊ |
| *)␊ |
| log_success_msg "usage: ${0} {start|stop|status|reload|restart|force-reload|reset}" >&2␊ |
| ;;␊ |
| esac |
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