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Kudos0

Performance issues with mingw gcc and other apps

I'm a developer.  I'm running Norton Security 22.11.2.7 on Windows 10 64-bit.  I've been using MinGW gcc (link below) for several years and have not had issues with Norton, but lately every time I compile any source code, and also when I run my own compiled codes, Norton Security burns major CPU cycles on my PC (monitoring these apps?) and everything runs noticeably slower (at least 2-3x slower).  Task manager shows Norton using about 50% of my CPU as the compiler (gcc.exe and cc1.exe) runs, for example.  Even if I disable NS auto-protect, smart firewall, and silent mode, it still slows everything down and uses a lot of CPU.  This has been happening for maybe a couple of months(?) now and is a significant, frustrating change from my past experience with NS.  I'm not sure if it started happening due to an upgrade of NS or if it happened when I upgraded to MinGW gcc 7.2.  Suggestions?  Can somebody also please explain why even when I disable it, NS still uses major CPU cycles and clearly continues to monitor these apps?

Latest MinGW compiler package:  https://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting...

Replies

Kudos0

Re: Performance issues with mingw gcc and other apps

PS.  I just tried an older version of the MinGW gcc compiler--v6.3.  Same issues.  So it was not due to upgrading to v7.2.

Kudos0

Re: Performance issues with mingw gcc and other apps

As a developer, you should place all your development projects into a folder set up for that. Then exclude that folder from all Norton scans shown in the image below. Try this and see if you still get the high CPU use when compiling.

Things happen. Export/Backup your Norton Password Manager data.
Kudos0

Re: Performance issues with mingw gcc and other apps

Thank you for the advice and tips--I was trying things in the advanced settings rather than in the "Antivirus" settings (too many settings!).  Actually, re-booting seems to have solved the issue for now, without having put in any exclusions.  Norton no longer dominates the CPU cycles when I build a project, and my projects are building much faster (at what I would call the normal speed).  Not sure why--I have seen this before also.  Immediately after re-booting, the performance is okay for a while, but eventually I see the slowdown again and Norton's CPU usage during my builds increases to significant levels.  I will try to be a little more systematic in my investigation and report what I find.  Like I said, this is relatively recent--last few months.

Kudos0

Re: Performance issues with mingw gcc and other apps

You might still want to set up the development folder as I suggested. There are many developers posting here that Norton removed their project because it could not find any reputation information on the files. The recovery is not always easy, or possible, depending on what kind of detection Norton made. See a current example here. https://community.norton.com/en/forums/file-insight-trashed-my-software

It might even speed up your compiling if Norton is not scanning during the compile process. 

Just because you are not having an issue now, a definition update might flag you files with some new detection, or feature.

Things happen. Export/Backup your Norton Password Manager data.

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