it could even calculate based on half the available memory at startup too
Discussion
$ awk '/MemFree/ {printf "%.0f\n", $2/1024/2}' /proc/meminfo
4079
it could even calculate based on half the available memory at startup too
$ awk '/MemFree/ {printf "%.0f\n", $2/1024/2}' /proc/meminfo
4079