Win10 have a option, set maxim CPU work for MsMpEng.exe?
lazarus / 34-Windows

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d2010 · 2025-01-07 16:18

Happy new year2025
The Microsoft Antivirus inside Win10, they user/s can set limit of CPU
at max40%.
I have my application.exe (E.g. Any console.app.lpr)
How to set max of cpu-work  with Lazarus for my app.exe?

Code: [Select] Directory of C:\Program Files\Windows Defender
04/11/2018  06:29 PM           395,304 MpCmdRun.exe
04/11/2018  06:29 PM            69,016 MpUXSrv.exe
04/11/2018  06:29 PM           974,232 MSASCui.exe
04/11/2018  06:29 PM           486,816 MSASCuiL.exe
04/11/2018  06:29 PM            85,016 MsMpEng.exe

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Fibonacci · 2025-01-07 16:33

https://learn.microsoft.com/en-
us/windows/win32/api/processthreadsapi/nf-processthreadsapi-
setpriorityclass
https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-
winbase-setthreadaffinitymask

You cant limit your app to a specific CPU % using WinAPI. To achieve
this, you will need to add small delays in your app, like in heavy
work loops (compression? encryption? parsing something?).