How do I query the current CPU usage of an application?

You can query the current CPU usage using either of the following methods:

In the code:

Use the hidebug.getCpuUsage API. The code snippet is as follows:

let cpuUsage: number = hidebug.getCpuUsage();

In the CLI:

Connect the devices properly.

hidumper --cpuusage <pid>
hidumper --cpuusage

Reference

hidebug.getCpuUsage