Slow Intellisense with node_modules after v1.74

[kvart714]

Type: Performance Issue

Some performance issue with TypeScript Intellisense.
The problem remains without any extensions
I recorded a small demo video: https://drive.google.com/file/d/1zfMnJEDu131k0K65dO_Yb-Qiz935DVrs/view?usp=sharing
please tell me if I can gather any more information

In the video, I am using VS Code 1.73 (left) and VS Code Insiders (right) to run 2 versions at the same time, but the issue occurs on all versions of VS Code >= 1.74

The problem is clearly visible when using Ctrl + Mouse over:

• VS Code 1.73 instantly highlights any token as a link on mouse hover
• VS Code 1.74 takes a few seconds before displaying text as a link

with Ctrl+click:

• VS Code 1.73 instantly go to definition
• VS Code 1.74 needs a few seconds

you can also see that after deleting the node_modules folder, the problem disappears: VS Code starts working very quickly

Project: empty Angular project created by the ng new command. I also added the storybook with npx storybook@latest init to increase the size of node_modules (this makes the problem worse)

VS Code version: Code 1.74.3 (97dec172d3256f8ca4bfb2143f3f76b503ca0534, 2023-01-09T16:59:02.252Z)
OS version: Windows_NT x64 10.0.19045
Modes:
Sandboxed: No

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-10875H CPU @ 2.30GHz (16 x 2304)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off 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_renderer: enabled_on video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off
Load (avg)	undefined
Memory (System)	15.88GB (5.17GB free)
Process Argv	--enable-proposed-api TabNine.tabnine-vscode --crash-reporter-id e0ce41fe-7355-4918-b32f-eb6b04e8b527
Screen Reader	no
VM	0%

Process Info

CPU %	Mem MB	   PID	Process
    0	   101	 21172	code main
    0	    96	   556	   gpu-process
    0	    27	  5800	   crashpad-handler
    0	   114	 13328	   shared-process
    0	    77	 32028	     fileWatcher
    0	    75	 33860	     ptyHost
    0	    96	 13480	   window (undefined)
    0	    42	 16800	   utility-network-service
    0	    94	 20860	   issue-reporter
    0	   202	 27676	   window (test.component.ts - test - Visual Studio Code)
    0	   112	 34400	   extensionHost
    0	   117	 30396	     "C:\Users\isubbotin\AppData\Local\Programs\Microsoft VS Code\Code.exe" --ms-enable-electron-run-as-node --max-old-space-size=3072 "c:\Users\isubbotin\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js" --serverMode partialSemantic --useInferredProjectPerProjectRoot --disableAutomaticTypingAcquisition --cancellationPipeName C:\Users\ISUBBO~1\AppData\Local\Temp\vscode-typescript\d46a16b61a2e13f2b40c\tscancellation-554d296162d2fc75dcc6.tmp* --locale en --noGetErrOnBackgroundUpdate --validateDefaultNpmLocation --useNodeIpc
    0	   124	 30504	     "C:\Users\isubbotin\AppData\Local\Programs\Microsoft VS Code\Code.exe" --ms-enable-electron-run-as-node --max-old-space-size=3072 "c:\Users\isubbotin\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\tsserver.js" --useInferredProjectPerProjectRoot --enableTelemetry --cancellationPipeName C:\Users\ISUBBO~1\AppData\Local\Temp\vscode-typescript\d46a16b61a2e13f2b40c\tscancellation-ddb21837f055d0683c09.tmp* --locale en --noGetErrOnBackgroundUpdate --validateDefaultNpmLocation --useNodeIpc
    0	    94	 24088	       "C:\Users\isubbotin\AppData\Local\Programs\Microsoft VS Code\Code.exe" --ms-enable-electron-run-as-node "c:/Users/isubbotin/AppData/Local/Programs/Microsoft VS Code/resources/app/extensions/node_modules/typescript/lib/typingsInstaller.js" --globalTypingsCacheLocation C:/Users/isubbotin/AppData/Local/Microsoft/TypeScript/4.9 --enableTelemetry --typesMapLocation "c:/Users/isubbotin/AppData/Local/Programs/Microsoft VS Code/resources/app/extensions/node_modules/typescript/lib/typesMap.json" --validateDefaultNpmLocation

Workspace Info

|  Window (test.component.ts - test - Visual Studio Code)
|    Folder (test): 314 files
|      File types: json(246) ts(16) svg(8) pack(4) html(4) css(4) js(3)
|                  sass(3) ico(2) old(1)
|      Conf files: tsconfig.json(2) launch.json(1) tasks.json(1)
|                  package.json(1)
|      Launch Configs: chrome(2);

Extensions: none

A/B Experiments

vsliv368cf:30146710
vsreu685:30147344
python383:30185418
vspor879:30202332
vspor708:30202333
vspor363:30204092
vslsvsres303:30308271
vserr242cf:30382550
pythontb:30283811
vsjup518:30340749
pythonptprofiler:30281270
vshan820:30294714
vstes263:30335439
vscoreces:30445986
vscod805cf:30301675
binariesv615:30325510
bridge0708:30335490
bridge0723:30353136
cmake_vspar411:30581797
vsaa593cf:30376535
pythonvs932:30410667
cppdebug:30492333
vsclangdf:30486550
c4g48928:30535728
dsvsc012:30540252
pynewext54:30695312
azure-dev_surveyone:30548225
282f8724:30602487
pyind779:30671433
f6dab269:30613381
pythonsymbol12:30671437
a9j8j154:30646983
showlangstatbar:30737416
pythonms35:30701012
pythonfmttext:30731395
pythoncmv:30739700
fixhidewlkth:30730051
hidesbindicator:30730055
pythongtdpathcf:30739705

[jasonpacheco]

I'm also experiencing this issue. I have a fairly large project using version 4.9.4 of TypeScript and I'm still running an outdated of VSCode (version 1.73.1) since I get extremely poor Intellisense performance for all versions of VSCode > 1.73.1. Here's a link to my closed issue for additional reference: microsoft/vscode#168491

When using version 1.73.1 of VSCode, if I use my workspace's version of 4.9.4, my Intellisense performance is as similar as shown in the OP's issue. However, if I switch to using the shipped VSCode TypeScript version of 4.8.4, the Intellisense performance is snappy and back to the baseline level I've experienced in all VSCode versions <= 1.73.1.

[jakebailey]

Just by nature of the version number in the title and the fact that deleting node_modules helps, I suspect this is #52535 and #52876.

@kvart714 If you set this in your settings.json, does it help?

"typescript.tsserver.watchOptions": {
    "watchFile": "fixedPollingInterval"
},

[typescript-bot]

This issue has been marked as 'Duplicate' and has seen no recent activity. It has been automatically closed for house-keeping purposes.