Why does the AL Language Extension for VS Code needs longer to load the code warnings after a precise amount of files in the folder?

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Posted on by Dominic Matheis

Hello guys

I notice a rather strange behavior. Currently when I change something in the code, it takes 5 seconds to load the code warnings (Yellow wavy lines). Usually it took something like 1 second.

So I started to investigate, if its something with my code that makes it take so long. But then I noticed, I can go back to my old 1 second loading time if, I delete 7 Random page files.

Why is that so?

Is there something like a Threshold and if you're above it, it generates the warnings in a different way?

Currently I have 85 files and a total of 53MB of Data.

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Suresh Kulla 50,243 Super User 2025 Season 2 on at

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Have you installed any other extensions like AZ AL Dev Tools or AL Tool Box?

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Dominic Matheis 35 on at

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No, just the AL Language extension.

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Marco Mels on at

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Hello,

Is this maybe related to this issue:

Slow performance after AL Language update · Issue #5768 · microsoft/AL · GitHub

Thanks

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Dominic Matheis 35 on at

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I found a solution. I needed to add something in the global "settings.json" file.

"al.incrementalBuild": true,

"al.compilationOptions": {

"delayAfterLastDocumentChange": 1000,

"parallel": true,

"maxDegreeOfParallelism": 16,

"delayAfterLastProjectChange": 1000,

},

"al.backgroundCodeAnalysis": true,

"al.enableCodeAnalysis": true,

"al.enableCodeActions": false,

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Marco Mels on at

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Thank you for sharing this insight.

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