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Increasing precision for virtual memory used percent on windows #1619

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rayjanoka
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@rayjanoka rayjanoka commented Apr 4, 2024

Hey! Nice library!!

I found that the virtualMemory.UsedPercent returned by windows is just a whole number and we lose some precision there. I computed it instead using total - available / total * 100 so we can get the same precision we see on linux.

virtMemTest - Old 28.000000 : New 28.606437
virtMemTest - Old 28.000000 : New 28.594666
virtMemTest - Old 28.000000 : New 28.637374

@shirou
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shirou commented Apr 18, 2024

Good point. Thanks you for opening this PR.

However, I noticed that psutil uses PERFORMANCE_INFORMATION instead of MEMORYSTATUSEX. So I think we should change that. After the change, the precision issue will be solved.

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