Linux Extendend Memory

check_extmem

An extended memory checker for Linux using physical memory and swap togehter in one check.

check_extmem.pl

An extended memory checker for Linux using physical memory and swap togehter in one check. It uses the following formula to calculate the free ram:

free = (physical used + swap used) - (physical free + swap free + buffers + disk cache)

./check_extmem.pl [ -w  -c  ]

There is also an icinga2 sample config and a template for pnp4nagios included.

pnp check_extmem

You will find more details in my personal blog: https://gehirn-mag.net/monitoring-linux-extended-memory/ (German only).