The Low Memory trigger can be used to notify administrative users of the situation. The task is run when the given Threshold is exceeded, that is the amount of used RAM, e.g. 94%. The Repeat Interval makes sure that there is a cool down between triggers.

The trigger is available only to administrative users and should run tasks that can be executed very fast, such as sending a notification or email to the administrative users.

• Threshold: The amount of RAM that should be exceeded. E.g. with 4GB available on the system, a threshold of 75% would run the trigger with more than 3GB being used.
• Repeat Interval: The amount of time that has to elapse before the trigger will run the task again