Which one is real? Who should I believe, or did I set it up incorrectly?

[yanite]

I am compiling the Linux kernel using WSL, and htop shows one core is fully utilized while the others are idle. Systeminformation also shows the same. However, the Windows built-in Resource Monitor does not show this. Where is the problem?

Everything is the latest version.！

Any suggestions or ideas are welcome!

[dmex]

Where is the problem?

You can't compare apples to oranges because they're different.

System Informer and Resource Monitor are showing CPU utilization which is why they're identical but Microsoft removed the CPU utilization statistics from Task Manager over 15 years ago and replaced utilization with Processor Utility which is a different metric.

It might have been possible to compare with Task Manager were the values somewhat accurate but they're not. If you generate 50% utilization with a benchmarking tool and compare with how System Informer and everything else are correctly showing 50% utilization while Task Manager is showing wildly inaccurate values like 30% or 70% then it's not accurate and unusable.

Google task manager nonsense and you'll find all the complaints and articles:

• https://aaron-margosis.medium.com/task-managers-cpu-numbers-are-all-but-meaningless-2d165b421e43
• https://illuminati.services/2021/03/17/windows-10-task-manager-cpu-inaccurate-a-tale-of-two-metrics/