The CPU will perform the same, whether at 10% utilization, or at 100% utilization, the system however won't.
That's the difference between load and utilization.

still don't understand you.

CPU will not perform the same at 10% utilization, it will perform 10 times less than at 100% utilization.

CPU load == CPU utilization == how big percentage of time CPU (or CPUs by average) are doing anything except being in idle loop or hlt/waiting for interrupt.
it's exactly the same words in that context.


load average is how much processes (by average) is not doing calculations because something is not yet available and depends of computer resources(*) - like CPU time, disk I/O results etc..

(*) - for example waiting on tty read is not calculated to load average as it's depends on human not computer.
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