RAM Trigger

The RAM trigger can be used to start a job if available system memory either drops below a threshold or rises above a threshold. The first parameter, Threshold Amount must be specified as a whole number value. This is used with the Threshold Type field which can specify if the amount is a percentage of total system memory. If percentage is used for type, then the value should be limited to a setting from 1 to 100. Otherwise, it defines the scale of the value allowing you specify the amount as being a whole number of Kilobytes (KB), Megabytes (MB), Gigabytes (GB), Terabytes (TB), Petabytes (PB). The Trigger Threshold parameter defines if we are looking to trigger based on the amount of free memory dropping below the threshold or rising above the threshold.

The option Seconds Between Checks is a value which controls the overall granularity of how soon the trigger may respond to changes in the amount of free memory. The minimum or default value for this setting is 5 seconds. The option Seconds Before Triggering controls the period in which the amount of free memory must sustain either above or below the threshold before the trigger will respond. The parameter for Seconds Between Triggers controls how often the trigger responds to the amount of free memory remaining above or below the threshold.

Here we can see the difference between selecting the trigger to be based on a specified value for the threshold, versus when it is based on a percentage.