High memory usage after enabling Vue Language Tools extension

[sunlho]

Hi, I’ve noticed a significant difference in memory usage after enabling the Vue Language Tools extension in VSCode.

Environment

• Vue Language Tools extension version: 3.0.1
• OS: Windows 10
• Workspace setup:
  • One medium-sized Vue 3 admin dashboard project (Vite-based)
  • One small Vue H5 project

Observations

• Without the extension:

  • Initial memory usage after VSCode starts: ~3 GB
  • After garbage collection: drops to ~700 MB

• With the extension enabled:

  • Initial memory usage: ~3 GB
  • After garbage collection: remains at ~2.4 GB

This behavior is consistent across multiple restarts and reproductions.

Question

Is the ~1.7 GB difference expected memory usage from the extension (e.g., language server indexing, project scanning), or does this suggest a potential memory leak?

Thanks!