![]() ![]() You can easily find copies from the Windows 7 days for about 5 or 10 Euros each. My recommendation is that you do some research by reading "Windows Internals" Part 1 and Part 2. It's probably a single threaded test you are running. We have no idea what program that is doing that. You don't know enough to show the process that is running hot. Why is it confusing to you that one core is running at 100% and the rest of the cores are running at < 5%? Why is it confusing to you that three different tools from Microsoft show slightly different values for CPU utilization? Everything is working as designed is my guess (and Microsoft probably told you this). My opinion is that you think you understand what's going on but nobody else does. This also applies to the server processors … ![]() Just take a look at this …īut this time please not only look at the base clock rate but also at the Max Turbo Frequency. Fuchs, your support case has been closed."ĭear Microsoft, determining and displaying the CPU load of a modern processor based on its base frequency is anything but not a wise idea today. So I immediately opened a support ticket at Microsoft by telephone and then described the problem accordingly by email.Ī few hours later I received an email with the following text. If you cannot correctly measure the utilization of a system, so it's not possible to control its performance properly. I suddenly had the following apprehension. The Process Explorer shows the correct utilization of my core 0. 100%, but my core 0 run according to the performance monitoring with up to 120%. The processor load is normally shown up to max. Only the performance monitor shows the correct load, but the display it "inconsistent". The Resource Monitor shows the same thing. I start a test and the CPU display of core 0 climbs to 100% in Task Manager. ![]() In summary: for me, the task manager as well as the resource monitor and the performance monitor do not show the correct CPU utilization. I wrote a little bit about this problem in the following post. Yesterday, when analyzing another problem, i stumbled upon a fatal error in the CPU performance display in the Microsoft task manager.
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