CPU - (Metrics|Counter)
All metrics are System metrics.
System Performance counters are CPU hardware registers that count hardware events such as instructions executed and cache-misses suffered.
For CPU performance, see CPU - Performance
The idle task is the task with the absolute lowest priority in a multitasking system. This task is also sometimes called the background task or background loop. This logic traditionally has a while type of loop. In other words, an infinite loop spins the CPU waiting for an indication that critical work needs to be done.
Work may or may not include a plethora of activity, including:
- floating point and integer computation,
- register moves,
- delays waiting for memory accesses and IO’s,