リミッターつきpurge.

gistfile1.sh

#!/bin/bash

# This script checks the available inactive memory.
# Memory is purged if the available number of MB is
# greater than the following "msize" variable. Attach
# this script to launchd to run it periodically.

msize=1200

MM=`vm_stat | awk '/Pages\ inactive\:/ {print int($3/256)}'`

echo "Testing status of inactive free memory..."

if [ "$MM" -gt "$msize" ]; then
    echo "You have too much inactive free memory. ${MM}MB Releasing now..."
    purge
else
    echo "Memory amount ${MM}MB does not meet purge threshold."
fi