syntax coloring and intellisense very slow

[conleymon]

Issue Type: Performance Issue

All of a sudden, intellisense is unusably slow. This becomes noticeable for files with 150 lines. It holds true after re-installation and with no extensions installed.

VS Code version: Code 1.29.1 (bc24f98, 2018-11-15T19:13:36.375Z)
OS version: Windows_NT x64 10.0.17134

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz (8 x 2195)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: unavailable_software video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Memory (System)	5.91GB (2.42GB free)
Process Argv
Screen Reader	no
VM	0%

Process Info

CPU %	Mem MB	   PID	Process
    0	    77	 20372	code main
    0	    88	  6280	   gpu-process
    0	   202	  6364	   window (● index.js - Visual Studio Code)
    0	    93	  3120	     extensionHost
    0	   232	 12264	       electron_node tsserver.js 
    0	    54	 13012	         electron_node typingsInstaller.js typesMap.js 
    0	    48	 15236	       "C:\Users\Owner\AppData\Local\Programs\Microsoft VS Code\Code.exe" "c:\Users\Owner\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\json-language-features\server\dist\jsonServerMain" --node-ipc --clientProcessId=3120
    0	    13	 10528	     electron-crash-reporter
    0	    66	 16432	   window (Issue Reporter)
    0	    63	 19840	   shared-process

Workspace Info

;

Extensions (1)

Extension	Author (truncated)	Version
prettier-standard-vscode	num	0.5.0

[jrieken]

Please use this guide to provide more information: https://github.com/Microsoft/vscode/wiki/Performance-Issues. Thanks.

[ci70]

This is a serious serious regression. And nobody is doing anything about it. #64681

[jrieken]

@optomux Also for you: https://github.com/Microsoft/vscode/wiki/Performance-Issues.

[conleymon]

Hi, my problem somehow resolved itself. It may have been after a restart, but I'm not sure. Thank you for your attention to the problem.Conley On Thursday, December 13, 2018, 1:44:42 AM CST, Johannes Rieken <[email protected]> wrote: @optomux Also for you: https://github.com/Microsoft/vscode/wiki/Performance-Issues. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[ci70]

What are you talking about? He clearly says there is a problem.
#64681