One example of fault injection action in FIS is generating a high CPU load on an EC2 instance. Each FIS action accepts a unique set of properties. This example of CPU load on EC2 instance, the property would be the % value of the load. Different FIS actions have different property values. FIS actions also helps you control the timeline and duration of the experiment. For each action, you can specify the StartTime and duration of the experiment. For example, you can design your experiment to include CPULoad action that increases the CPU load to 75% to start at StartTime of 0 seconds and run for 60 seconds.