does a trigger support two items comparison?

[robertchen]

{Template OS Windows:vm.memory.size[free].last(5m)} < 0.1 * {Template OS Windows:vm.memory.size[total].last()}

I want to send alert if free memory is less than 10% of total memory, please let me know if this triggers works or not.

thanks.

[jvalenzani]

Use pfree instead of free and you will get % value of the item.

[aib]

I have the expression which controls if we have less than 2% of Physical Memory:

{{HOST.NAME}:vm.memory.size[free].last(600)}/{{HOST.NAME}:vm.memory.size[total].last(600)}<0.02