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Malware bytes slowing down mingw64


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I use mingw64 for building some software.

If Malwarebytes is running the build process is slowed down by about 1700%.

With MB running

real    10m47.732s
user    0m18.962s
sys     0m21.675s
 

 

WIthout MB running

real    0m38.210s
user    0m13.628s
sys     0m20.499s

 

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  • Root Admin

Please try the following and let us know if that helps any or not

 

Can you please do the following?

  • Download the Malwarebytes Support Tool
  • In your Downloads folder, open the mb-support-x.x.x.xxx.exe file
  • In the User Account Control pop-up window, click Yes to continue the installation
  • Run the MBST Support Tool
  • In the left navigation pane of the Malwarebytes Support Tool, click Advanced
  • In the Advanced Options, click the CLEAN button and follow the onscreen instructions to reinstall Malwarebytes
  • NOTE: Please have patience as it can take a while to remove and reinstall.
  • RESTART the computer after the reinstall

After the restart please do the following

  • Run the MBST Support Tool
  • In the left navigation pane of the Malwarebytes Support Tool, click Advanced
  • In the Advanced Options, click Gather Logs. A status diagram displays the tool is Getting logs from your machine
  • A zip file named mbst-grab-results.zip will be saved to your desktop, please upload that file on your next reply

Thank you

 

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After dong the clean and reinstall it's only 300% slower now so an improvement there.

But if a directory is excluded it would seem it should be faster.   Is the lombst-grab-results.zipokup method for exclusions just walking a list or using a dictionary?  Dictionary would be faster.

 

As another side note the mbst-grab-results.zip ended up in \Users\Public\Desktop 

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With 1 directory (the build directory) in the exclusion list
 
make clean
real    1m28.146s
user    0m7.876s
sys     0m8.194s
make 
real    28m51.477s
user    2m53.710s
sys     3m4.393s
 
Disabling Malwarebytes
make clean
With Malwarebytes turned off
make clean
real    0m15.991s
user    0m7.065s
sys     0m7.547s
make
real    4m50.175s
user    2m51.833s
sys     3m2.462s
 

mbst-grab-results.zip

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  • Root Admin

Please add the following to your exclusions in Malwarebytes

 

C:\Users\mdbla\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Qt\5.15.2\MSVC 2015 (64-bit)\Qt 5.15.2 (MSVC 2015 64-bit).lnk -> C:\Windows\System32\cmd.exe (Microsoft Corporation) -> /A /Q /K C:\JTSDK64-Tools\tools\Qt\5.15.2\msvc2015_64\bin\qtenv2.bat

Exclude the link file and the folder it points to

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