vscode: Tasks slow since 1.29.0

Issue Type: Performance Issue

Since installing the update to 1.29.0, I’ve noticed a significant delay in task actions, in two distinct spots:

Between summoning the task list and the list becoming populated
Between selecting a task and that task starting to execute (as indicated on the status bar)

In both cases, the delay lasts around 1.5 to 2 seconds, and is consistent across several attempts, with and without extensions enabled, before and after system restarts. Prior to this issue, the duration of these actions was normally less than 0.5 seconds.

VS Code version: Code 1.29.0 (5f24c93878bd4bc645a4a17c620e2487b11005f9, 2018-11-12T07:47:15.448Z) OS version: Windows_NT x64 10.0.17134

System Info

Item	Value
CPUs	Intel® Xeon® CPU E5-2687W v4 @ 3.00GHz (24 x 2993)
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: enabled video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Memory (System)	63.92GB (52.79GB free)
Process Argv
Screen Reader	no
VM	0%

Process Info

CPU %	Mem MB	   PID	Process
    0	    98	 13240	code main
    0	   151	  4616	   window (Redacted)
    0	    13	  1916	     electron-crash-reporter
    0	    81	 14008	     extensionHost
    0	    62	 17068	       electron_node server.js 
    0	    35	 17248	       C:\Users\avernon\.vscode\extensions\ms-vsliveshare.vsliveshare-0.3.953\dotnet_modules\vsls-agent.exe --autoexit --pipe 63fc90e5aed54aceb947f4348020384b --service https://insiders.liveshare.vsengsaas.visualstudio.com/
    0	     9	 17292	         console-window-host (Windows internal process)
    0	   199	 11452	   window (Redacted (Workspace))
    0	    42	  3172	     watcherService
    0	    63	 17280	     extensionHost
    0	    37	 22748	     searchService
    0	    98	 15056	   gpu-process
    0	    65	 16784	   shared-process
    0	    67	 23216	   window (Issue Reporter)

Workspace Info

|  Window - (Redacted (Workspace))
|    Folder (pre-apt): 34 files
|      File types: as(14) fla(5) swf(5) js(3) json(2) p4ignore(1) html(1)
|                  editorconfig(1) md(1) css(1)
|      Conf files: package.json(1)
|    Folder (ui): more than 40781 files
|      File types: png(32027) swf(2844) as(2366) fla(1870) xml(1389) nav(138)
|                  ttf(110) PNG(20) txt(7) json(2)
|      Conf files: settings.json(1) tasks.json(1);

Extensions: none

About this issue

Original URL
State: closed
Created 6 years ago
Reactions: 3
Comments: 18 (7 by maintainers)

Most upvoted comments

I have been seeing the same thing (except more like 30-60 seconds for the list to populate), and "typescript.tsc.autoDetect": "off" also fixes it for me.

Some more info:

The slowdown seems to be caused by Windows Defender going completely nuts and pegging my CPU at 100% when the task list opens.
If I don’t disable my extensions, just opening VSCode has the same effect, causing Defender to sit my CPU at 100% for about a minute. I now realise it’s probably the fact that we have a lot of TypeScript in our project.
It’s Windows 10, as up to date as likes right now.
This started happening immediately after installing the most recent VSCode update.

franklin-ross on Nov 15, 2018

@wangfuxiong TS is working on fixing this.

dbaeumer on Nov 28, 2018

@dbaeumer "typescript.tsc.autoDetect": "off" solves the problem for me.

O.S: Windows 10 Home, 64 bits, 1803. Build: 17134.407

skarcha on Nov 16, 2018