electron_node tsserver.js - running at 100%

[LeeCampbellr]

Issue Type: Bug

Running a gatsby project with the base styled-components installed - tried the clearing of the typescript version cache. tsserve processr is running at 100% anytime I edit any file with styled-components. I'm running the insiders edition with no extension active.

VS Code version: Code - Insiders 1.34.0-insider (f89390f, 2019-04-18T13:31:41.962Z)
OS version: Darwin x64 18.5.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz (12 x 2900)
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: enabled rasterization: enabled surface_synchronization: enabled_on video_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	3, 2, 2
Memory (System)	32.00GB (10.94GB free)
Process Argv	-psn_0_3789725
Screen Reader	no
VM	0%

Extensions (1)

Extension	Author (truncated)	Version
material-icon-theme	PKi	3.7.0

(1 theme extensions excluded)

[mjbvz]

Do you have @types/styled-components installed under node_modules? If so, what version?

[LeeCampbellr]

I do not have @types/styled in the project.

[mjbvz]

Sorry, should be @types/styled-components. I updated my comment for this.

Also, can you please try collecting the TS Server log to help us investigate:

1. Set "typescript.tsserver.log": "verbose",
2. Restart VS Code and reproduce the problem
3. In VS Code, run the TypeScript: Open TS Server log command
4. This should open a tsserver.log file in the editor

If you can share that log, I can take a look to see if anything stands out

⚠️Warning: The TypeScript log may include information from your workspace, including file paths and source code. If you have any concerns about posting this publicly on Github, just let me know and we can arrange something else. On our side, we only use these logs to investigate issues like this

[LeeCampbellr]

I do not have @types/styled-components in the project.

I've attached a TS Server log following your steps - let me know if there's anything else I can help to resolve.

tsserver.log

[mjbvz]

Thanks. I don't see anything in the logs that indicates a long running request or expensive ongoing operation. Was the high cpu usage happening when you collected the log? How long does the spike last?

One idea: can you try creating a jsconfig.json at the root of your project. This file explicitly defines a javascript project and may prevent a few js files under node_modules from being included

[LeeCampbellr]

It was happening - if I do any typing in the code editor with a Gatsby project open it goes nuts, especially copy and pasting sections of code around - but the second I stop typing the CPU drops back down.

I created a jsconfig.json at the root of the project this morning and it did not help.

[fortydegrees]

FWIW, I also encounter this issue with a similar setup

[mjbvz]

@LeeCampbellr Can you also please test this again using the latest VS Code insiders build (which includes TypeScript 3.5)

I believe you could have been hitting microsoft/TypeScript#30819 which should now be fixed

[mjbvz]

Closing this as a likely duplicate of microsoft/TypeScript#30819 based on the repo

[leolozes]

I'm consistently getting a 25%-40% CPU usage from electron_node tsserver.js, both on the last stable and last exploration build, with no extensions. Also, between 600 and 1.200 MB of RAM usage:

I don't have @types/styled-components installed under node_modules, however I do have @types/styled-jsx@^2.2.8, I don't know if it can impact as well.

At the time I took the screenshot I had the ESLint extension enabled. I tried without it and it doesn't seem to have an impact.