TS memory management for large JS projects

VSCode Version: 1.38.1
OS Version: Win10 1809

When opening large JS project intellisense stops working after receing an error notification
"To enable project-wide JavaScript/TypeScript language features, exclude large folders with source files that you do not work on.". My project contains of around 11k JS files (excluding node_modules - just project files) - around 50MB of source code.

I have excluded any large external forlders in my jscondig.json

{
  "compilerOptions": {
    "baseUrl": ".",
    "paths": { ... some paths } 
  },
  "exclude": [
    "node_modules",
    "**/node_modules/*",
    "dist",
    "build",
    "docs",
    "functional-tests",
    "**/.cache-loader/*"
  ]
}

tsserver.log doesn't show anything suspicious - just tons of watchers for files I would expect they should be there. No errors or whatsoever. I've seen tons of reports like this but without any real answers what is going on and how to fix it (#31188, microsoft/vscode#9594, microsoft/vscode#35549 to just point a few). There is a TS server issue reference in microsoft/vscode#35549 - to a max non TS file size limit hardcoded at 20MB. Is this the case? Can vscode handle projects larger that 20MB in total size??

Maciej Dragan (@drkn)

Maciej Dragan (@drkn) you can check this comment first and then this one

This is still on my to-do list and I was planning to prepare draft next week.

Thanks, but in my case adding disableSizeLimit: true to jsconfig.json ends up in endless
(intellisense doesn't work at all then).

$ code --status

Version:          Code 1.38.1 (b37e54c98e1a74ba89e03073e5a3761284e3ffb0, 2019-09-11T13:35:15.005Z)
OS Version:       Windows_NT x64 10.0.17134
CPUs:             Intel(R) Core(TM) i5-8350U CPU @ 1.70GHz (8 x 1896)
Memory (System):  15.85GB (7.26GB free)
VM:               0%
Screen Reader:    no
Process Argv:
GPU Status:       2d_canvas:                     enabled
                  flash_3d:                      enabled
                  flash_stage3d:                 enabled
                  flash_stage3d_baseline:        enabled
                  gpu_compositing:               enabled
                  multiple_raster_threads:       enabled_on
                  native_gpu_memory_buffers:     disabled_software
                  oop_rasterization:             disabled_off
                  protected_video_decode:        enabled
                  rasterization:                 enabled
                  skia_deferred_display_list:    disabled_off
                  skia_renderer:                 disabled_off
                  surface_synchronization:       enabled_on
                  video_decode:                  enabled
                  viz_display_compositor:        disabled_off
                  webgl:                         enabled
                  webgl2:                        enabled

CPU %   Mem MB     PID  Process
    1       68   36384  code main
    0       14   27608     utility
    1      211   34288     window
    0        5   17784       winpty-process
    0        4   31344         "C:\Program Files\Git\bin\bash.exe"
    0        9   16892           "C:\Program Files\Git\bin\..\usr\bin\bash.exe"
    0        8   31692         console-window-host (Windows internal process)
    0        7   25996       winpty-process
    0        8   33836         console-window-host (Windows internal process)
    0        4   36856         "C:\Program Files\Git\bin\bash.exe"
    0        7   37500           "C:\Program Files\Git\bin\..\usr\bin\bash.exe"
    0       14   36660       watcherService
    0        5   36092         console-window-host (Windows internal process)
    0      123   36956       extensionHost
    0       24   33168         electron_node languageserver.js
    0       45   36928         "C:\Users\...\AppData\Local\Programs\Microsoft VS Code\Code.exe" "c:\Users\...\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\json-language-features\server\dist\jsonServerMain" --node-ipc --clientProcessId=36956
    0       44   37228         electron_node eslintServer.js
    0       71   46780         electron_node tsserver.js
    0       72   50180         electron_node tsserver.js
    0       67   50320           electron_node typingsInstaller.js typesMap.js
    0       39   37788       searchService
    0        7   48928       winpty-process
    0        5   42248         "C:\Program Files\Git\bin\bash.exe"
    0       11   40596           "C:\Program Files\Git\bin\..\usr\bin\bash.exe"
    0       10   46884         console-window-host (Windows internal process)
    1      277   36668     gpu-process
    0       73   36768     shared-process

Workspace Stats:
|  Window
|    Folder: more than 24138 files
|      File types: json(8396) js(3157) png(1633) md(837) svg(617) html(405)
|                  css(385) jpg(208) less(39) ejs(31)
|      Conf files: package.json(3) jsconfig.json(1) settings.json(1)
|                  tsconfig.json(1) webpack.config.js(1)

For VS Code to analyze a project, the total size of JS under analysis generally needs to be under 20 MB. You can create jsconfig.json files in subdirectories to limit the scope of analysis to smaller chunks that fit in available memory, or turn off the JS language service altogether if that isn't an option for you.

This issue has been marked as 'Question' and has seen no recent activity. It has been automatically closed for house-keeping purposes. If you're still waiting on a response, questions are usually better suited to stackoverflow.

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TS memory management for large JS projects #33629

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TS memory management for large JS projects #33629

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IllusionMH commented on Sep 27, 2019

drkn commented on Sep 27, 2019

RyanCavanaugh commented on Oct 14, 2019

typescript-bot commented on Oct 19, 2019

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