Very Slow Compilation of rescript files.

[rahilvijay]

Hi, I am facing an issue which is faced also by many of my colleagues, the build for rescript files is taking way longes than expected. I am using rescript version - 9.1. System - Mac OS 12, M1 chip (the issue is also there for intel)

The video is attached below. The issue started fro today only, the memory and cpu usage are 7/8 GB and 27% with the build process running

https://github.com/rescript-lang/rescript-compiler/assets/110456714/a30461c5-0e4e-41bb-aae5-c000b6fb20b7

](url) Is Thank you for filing! Check list:

• [x] Is it a bug? Usage questions should often be asked in the forum instead.
• [x] Concise, focused, friendly issue title & description.
• [ ] A minimal, reproducible example.
• [x] OS and browser versions, if relevant.
• [ ] Is it already fixed in master? Instructions

[fhammerschmidt]

Coincidentally I also just had slow compile times on an M2. Instead of 9 seconds for a full build it took 53 seconds! But it went away after a reboot.

[fhammerschmidt]

Also, even more interesting: I have double the compile time when I run the compiler in the VSCode terminal. From macOS Terminal it is 8-9s for the full build, in VSCode it's 16!

That's even with all extensions disabled.

[rahilvijay]

this is happening because of crowdstrike imentation. Any idea why the compile would be affected by it.

[fhammerschmidt]

I don't know exactly why, but this is very common for antivirus software. You are creating and changing a lot of files and my guess is that it scans each of them.

There is probably the possibility to put certain paths on a whitelist.

See also: https://developer.apple.com/forums/thread/115773?answerId=358647022#358647022

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