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Help: Rainmeter Application • CPU meter accuracy

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This is old news at this point, but if you are just recently upgrading your CPU or Windows version (or both) this might be new to you. There are many posts on this topic:

[Bug] Skins show lower than actual CPU Usage in Windows 11 22H2
New computer on intel 13th gen W11 (CPU Usage is wrong)

There are several other threads also. In short, MS made a significant change to the way performance is reported in Win11 22H2. They actually changed it in Windows 8, but no one really noticed until 22H2. The change is the way they determine how "busy" your CPU is. The Rainmeter CPU measure and the CPU alias in the UsageMonitor measure use method that use time-based performance counters. Task Manager has used "utility-based" performance counters since Windows 8, but significantly changed things in 22H2 -- especially if you have a hybrid CPU. The upshot is that time-based counters report performance lower than before. Microsoft insists that utility-based counters are more accurate, but core performance can exceed 100%, especially with most newer processors that have low base clocks and run in turbo/boost mode frequently.

So the answer to your question is "it depends". There's no "setting" you can tweak, other than to change your skin to use utility counters instead of time-based counters. A CPU Meter skin that does both is here, but even then some people don't want either of MS's choices. HWiNFO recently updated their sensor reporting to use a method that more closely follows the pre-22H2 approach, so you can create or adjust an existing skin to use this as an alternative method.
I use:

Code:

[MeasureCPUAvg]Measure=PluginPlugin=UsageMonitorAlias=CPUIndex=0
But yeah, not a match for Taskmanager / CPU. Much closer to HWiNFO. To be honest, I'm not much concerned about CPU usage percent as an absolute value, but as a value relative to itself. In other words, 5% now is less than 8% before, so that tells me something. If you fret about the absolute value, then the question becomes 8% of "what"? Not sure there is a consistent reliable answer to that.

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So that percentage for the CPU is of some interest, and the percentage for "top process" is perhaps of equal interest.

Statistics: Posted by jsmorley — November 24th, 2024, 7:42 pm — Replies 2 — Views 2343



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