Very slow intelisense when used in large project

[bryanjtc]

Type: Bug

Open a larget typescript project with more than 5000 thousand files including node_modules
Vscode tries to load typescript intelisense and takes too long to finish.
It may take more than 5, 10, 15 minutes.

Related to: #102
Related to: #88
Related to: #75

This related issues also happen to me, but I just wait until the intelisense finishes loading.

Extension version: 0.5.4
VS Code version: Code 1.89.1 (dc96b837cf6bb4af9cd736aa3af08cf8279f7685, 2024-05-07T05:13:33.891Z)
OS version: Windows_NT x64 10.0.22631
Modes:

System Info

Item	Value
CPUs	AMD Ryzen 5 5600X 6-Core Processor (12 x 3700)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	undefined
Memory (System)	15.93GB (2.00GB free)
Process Argv	--crash-reporter-id 6477b93f-7c3b-4f54-a06d-545a69cae368
Screen Reader	no
VM	0%

A/B Experiments

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cppperfnew:31000557
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dsvsc021:30996838
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pythoncenvpt:31062603
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dvdeprecationcf:31061161
pythonprt:31056678
dwnewjupyter:31046869
26j00206:31048877

[kevinramharak]

@bryanjtc Thanks for the report. Is there any chance your project is available online?
Also can you check if you are using this setting: typescript.tsserver.experimental.enableProjectDiagnostics? As I have tried to reproduce this with a few large projects, this issue seems hard to pin down.

[bryanjtc]

The project is private. I don't have enabled enableProjectDiagnostics.

[kevinramharak]

@bryanjtc Understandable, thanks for the info on the setting. That will help narrow it down a bit.