The difference between the two counter types concerns how they measure the actual work that the processor performs. (Windows Resource Monitor will show values over 100%.) Task Manager's CPU Performance tab will truncate (or clamp) CPU utilization values to 100%.Rainmeter's CPU measure and the UsageMonitor plugin with the CPU alias both use the Windows 7-style Processor > % Processor Time counter.The old performance counters, Processor > % Processor Time and Processor > % Privileged Time still exist, and were used by Task Manager in Windows 7 and earlier. Microsoft created new performance counters, Processor Information > % Processor Utility and Processor Information > % Privileged Utility that attempt to better report the work a CPU is doing starting with Windows 8, Task Manager now uses these counters.

This change affects the way that CPU utilization is computed. Starting with Windows 8, a change was made to the way that Task Manager and Performance Monitor report CPU utilization. (This does not mean your observations about Win11 22H2 aren't correct, they may be true too.) If you want the long version, here it is: With all that said, I do need point out that the CPU utilization you see in Windows Task manager has not matched Rainmeter since approximately Windows 8. That is why things appear and disappear unfortunately, there's nothing I can do about that, it is a Rainmeter issue.) (The Top CPU Meter does bounce around a lot because Rainmeter does not report processes that use less than 0.1% CPU. What I can say is that all this usage info is coming from Windows itself, so Rainmeter is only telling you what Windows says. It may have something to do with Microsoft tweaking the way the thread scheduler works for the newer hybrid CPUs (p-cores vs. I can't say for sure why you see a difference between Win11 21H2 and Win11 22H2. How come Gadgets cpu usage works but not Rainformers? Worked perfectly on Windows 11 21H2. And the CPU usage in the top CPU rainmeter on both Gadgets and Rainformer show the incorrect CPU usage for processes. However the top CPU rainmeter from Gadgets seems to show the exact same symptoms as Rainformer under 22H2, it only shows a few process for a few seconds, then more processes the next second and the other second just two process for example. The Gadgets CPU-meter seems to be accurate on Windows 11 22H2 as below screenshots when I compare it to Rainformer and Task Manager. Beeta wrote: ↑ September 22nd, 2022, 6:14 am

Rainmeter cpu usage