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I had heard the issue was with how Windows/NTFS let a bunch of extensions place hooks into reading and writing files. Antivirus apps would sometimes put a bunch
by ufmace 6y ago
I had heard the issue was with how Windows/NTFS let a bunch of extensions place hooks into reading and writing files. Antivirus apps would sometimes put a bunch of heavy-ish hooks in that would be terrible for performance with lots of tiny files, which many Unix-y workflows expect to be able to do quickly.
- opencl 6y agoThe "sometimes" includes the one Microsoft ships by default with Windows. It is ridiculous how much faster random file access becomes when disabling Defender's real time protection feature.
- ziml77 6y agoIt's one of the most impactful AVs when it comes to file r/w speed, especially on lots of small files. I have no idea why I still see people calling it lighter and faster than other AV options. It's not even like the performance loss is getting better protection. Products like Bitdefender and Kaspersky have better detection rates and don't murder performance. (Personally I just turn it off and don't install a replacement)
- giancarlostoro 6y agoThis is probably why JetBrains IDEs suggest to add your projects to antivirus exceptions for you. I rarely ever have performance issues while developing anymore after I let JetBrains do its thing.