Normalize Load Average by CPU Count
A load average of four means something very different on a two-core system than on an eight-core system.
CPU
Database Container Metrics Need Engine Metrics Beside Them
High database container CPU or memory can be an important symptom, but it cannot identify whether the engine is busy with useful work, blocked transactions or internal maintenance.
CPU Utilization Without CPU Modes Hides the Bottleneck
The host can report high CPU usage even when the useful question is whether time is going to user work, system work, steal, or I/O wait.