Activated by `onLanguage:toml` event: `25ms`

[Paul-16098]

Type: Performance Issue

Behaviour

Activated by onLanguage:toml event: 25ms

Steps to reproduce:

open a toml file

Diagnostic data

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

XXX

Extension version: 2025.12.0
VS Code version: Code 1.103.2 (6f17636121051a53c88d3e605c491d22af2ba755, 2025-08-20T16:45:34.255Z)
OS version: Windows_NT x64 10.0.26100
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-1035G1 CPU @ 1.00GHz (8 x 1190)
GPU Status	2d_canvas: enabled 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 trees_in_viz: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	7.70GB (0.85GB free)
Process Argv	--folder-uri file:///c%3A/Users/p/Documents/git/my-http-server --crash-reporter-id a4280153-3bce-4711-90fd-fb32dd197407
Screen Reader	no
VM	0%

Process Info

CPU %	Mem MB	   PID	Process
    2	    81	  5864	code
   10	   110	  2760	shared-process
    0	     0	  6956	   crashpad-handler
    0	     5	 10904	pty-host
    0	     0	  5948	     conpty-agent
    0	    55	 19400	     "C:\Program Files\PowerShell\7\pwsh.exe" -noexit -command "try { . \"c:\Program Files\Microsoft VS Code\resources\app\out\vs\workbench\contrib\terminal\common\scripts\shellIntegration.ps1\" } catch {}"
    0	    17	 12984	file-watcher [1]
    0	    10	 16512	   utility-network-service
    1	   451	 17264	extension-host [1]
    0	   180	  1472	     "C:\Program Files\Microsoft VS Code\Code.exe" c:\Users\p\.vscode\extensions\streetsidesoftware.code-spell-checker-4.0.47\packages\_server\dist\main.cjs --node-ipc --clientProcessId=17264
    0	     5	  1940	     electron-nodejs (server.js )
    0	     4	  7540	     electron-nodejs (server.js )
    0	     5	  8956	     electron-nodejs (start-server.js )
    0	     8	  9368	     "C:\Program Files\Microsoft VS Code\Code.exe" "c:\Program Files\Microsoft VS Code\resources\app\extensions\json-language-features\server\dist\node\jsonServerMain" --node-ipc --clientProcessId=17264
    0	   278	  9644	     electron-nodejs (bundle.js )
   10	    62	 10208	     electron-nodejs (server.js )
    9	  1418	 11008	     c:\Users\p\.vscode\extensions\rust-lang.rust-analyzer-0.3.2593-win32-x64\server\rust-analyzer.exe
    0	     0	  4296	       C:\Windows\system32\conhost.exe 0x4
    0	    21	 20288	       "C:\Users\p\.rustup\toolchains\stable-x86_64-pc-windows-msvc\libexec\rust-analyzer-proc-macro-srv.exe"
    0	     4	 11692	     electron-nodejs (server.js )
    0	    11	 14884	     c:\Users\p\.vscode\extensions\ms-vscode.cpptools-1.26.3-win32-x64\bin\cpptools.exe
    0	     0	 12764	       C:\Windows\system32\conhost.exe 0x4
    0	     5	 15960	     electron-nodejs (eslintServer.js )
    0	     2	 18788	     C:\Users\p\.cargo\bin\pest-language-server.exe
    0	     0	 16576	       C:\Windows\system32\conhost.exe 0x4
    0	     4	 19352	     electron-nodejs (server-node.js )
    2	   249	 19560	window [1] (延伸模組: Python - my-http-server - Visual Studio Code)
    2	    72	 19772	   gpu-process

Workspace Info

|  Window (延伸模組: Python - my-http-server - Visual Studio Code)
|    Folder (my-http-server): 19101 files
|      File types: o(6945) timestamp(1494) json(1488) d(1220) rmeta(1100)
|                  rlib(596) bin(328) pdb(190) exe(133) lock(107)
|      Conf files: github-actions(2);