Spring Boot actuator "system.cpu.usage" vs "process.cpu.usage"

Question

I am using spring boot 2.3.2. With help of actuator, publishing the application metrics to metrics console. I would like to know what is the difference between system.cpu.usage and process.cpu.usage metrics polished by the actuator.

Answer 1

Based on source code

• system.cpu.usage -- The recent cpu usage for the whole system
• process.cpu.usage -- The recent cpu usage for the Java Virtual Machine process

For more info about these metrics you can look at java doc of this bean OperatingSystemMXBean