Why Is Basic Monitoring Data Inconsistent with Data Monitored by the OS?

Symptoms

CPU Usage under Basic Monitoring is close to 100%, which is very different from the CPU usage monitored by the OS (50%).

Possible Causes

• If you set idle to poll in the guest operating system (guest OS), and the guest OS is idle and enters the polling state, it consumes compute resources and does not proactively release CPU resources. As a result, the CPU usage is abnormal.
• In a HANA ECS, idle is set to mwait in the guest OS. When the guest OS is idle and enters the mwait state, the guest OS consumes less resources than that when idle is set to poll. However, the guest OS does not proactively release CPU resources, either. As a result, the CPU usage is abnormal.

Solution

Install and configure the Agent to view OS monitoring data.