kvm-ksm

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#!/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
Source at commit 83495d1e1f6c created 11 years 9 months ago.
By Nathan Adams, initial commit

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