Extension causes high cpu load

[ratul16]

• Issue Type: Performance
• Extension Name: code-settings-sync
• Extension Version: 3.4.3
• OS Version: Windows_NT x64 10.0.18363
• VSCode version: 1.41.1

:warning: Make sure to attach this file from your home-directory: :warning:C:\Users\harat\Shan.code-settings-sync-unresponsive.cpuprofile.txt

Find more details here: https://github.com/microsoft/vscode/wiki/Explain-extension-causes-high-cpu-load

[nemchik]

Shan.code-settings-sync-unresponsive.cpuprofile.txt Just had something happen that resulted in VS code directing me here. It said to attach this file.

[mavaddat]

Shan.code-settings-sync-unresponsive.cpuprofile.txt Version: 1.46.0-insider (system setup) Commit: 6849775440496504e0677ffcf2a46d47ad9130f5 Date: 2020-05-15T05:30:56.857Z Electron: 7.2.4 Chrome: 78.0.3904.130 Node.js: 12.8.1 V8: 7.8.279.23-electron.0 OS: Windows_NT x64 10.0.19628

CPUs	Intel(R) Core(TM) i7-3540M CPU @ 3.00GHz (4 x 2990)
GPU Status	2d_canvas: enabledflash_3d: enabledflash_stage3d: enabledflash_stage3d_baseline: enabledgpu_compositing: enabledmultiple_raster_threads: enabled_onoop_rasterization: disabled_offprotected_video_decode: unavailable_offrasterization: enabledskia_renderer: disabled_off_okvideo_decode: enabledviz_display_compositor: enabled_onviz_hit_test_surface_layer: disabled_off_okwebgl: enabledwebgl2: enabled
Load (avg)	undefined
Memory (System)	15.91GB (1.20GB free)
Process Argv
Screen Reader	no
VM	0%

Extension	Author (truncated)	Version
vscode-django	bat	0.20.0
npm-intellisense	chr	1.3.0
vscode-markdownlint	Dav	0.35.2
vscode-eslint	dba	2.1.5
java-decompiler	dgi	0.0.2
githistory	don	0.6.5
python-extension-pack	don	1.6.0
prettier-vscode	esb	4.7.0
code-runner	for	0.10.0
beautify	Hoo	1.5.0
vscode-peacock	joh	3.7.2
chat	kar	0.33.0
vscode-codemetrics	kis	1.24.0
vscode-github	Kni	0.30.3
bash-ide-vscode	mad	1.10.0
MagicPython	mag	1.1.0
vscode-azurefunctions	ms-	0.22.1
python	ms-	2020.5.78807
remote-wsl	ms-	0.44.2
azure-account	ms-	0.8.11
powershell-preview	ms-	2020.5.0
vsliveshare	ms-	1.0.2169
vsliveshare-audio	ms-	0.1.85
vsliveshare-pack	ms-	0.3.4
debugger-for-chrome	msj	4.12.6
autodocstring	njp	0.5.1
vscode-for-node-js-development-pack	nod	2.0.1
subtitles-editor	pep	1.0.4
java	red	0.61.0
vscode-xml	red	0.11.0
code-settings-sync	Sha	3.4.3
vscode-checkstyle	she	1.3.3
vscodeintellicode	Vis	1.2.7
vscode-java-debug	vsc	0.26.0
vscode-java-dependency	vsc	0.10.1
vscode-java-pack	vsc	0.9.1
vscode-java-test	vsc	0.22.4
vscode-maven	vsc	0.21.4
python-auto-venv	whi	1.1.0
jinja	who	0.0.8
vscode-import-cost	wix	2.12.0
vscode-preview-server	yui	1.3.0
markdown-all-in-one	yzh	2.8.0

[mavaddat]

Shan.code-settings-sync-unresponsive.cpuprofile.txt

Extension version: 1.0.2274 VS Code version: Code - Insiders 1.46.0-insider (595d2b9b916d063aadfc2c1a8c8f6df5b45572a8, 2020-06-03T05:43:09.908Z) OS version: Windows_NT x64 10.0.19635

System Info

Attribute	Value
CPUs	Intel(R) Core(TM) i7-3540M CPU @ 3.00GHz (4 x 2990)
GPU Status	2d_canvas: enabledflash_3d: enabledflash_stage3d: enabledflash_stage3d_baseline: enabledgpu_compositing: enabledmultiple_raster_threads: enabled_onoop_rasterization: disabled_offprotected_video_decode: unavailable_offrasterization: enabledskia_renderer: disabled_off_okvideo_decode: enabledviz_display_compositor: enabled_onviz_hit_test_surface_layer: disabled_off_okwebgl: enabledwebgl2: enabled
Load (avg)	undefined
Memory (System)	15.91GB (4.89GB free)
Process Argv	-n C:\Users\MavaddatJavid\AppData\Local\Temp\vsliveshare\tmp-E38AD9D16A96F58215D42154141023C50017\Visual Studio Live Share.code-workspace
Screen Reader	no
VM	0%

Installed Extensions

Extension	Author (truncated)	Version
npm-intellisense	chr	1.3.0
vscode-markdownlint	Dav	0.36.0
vscode-eslint	dba	2.1.5
java-decompiler	dgi	0.0.2
githistory	don	0.6.5
prettier-vscode	esb	5.0.0
vscode-todo-plus	fab	4.17.1
code-runner	for	0.10.0
beautify	Hoo	1.5.0
vscode-peacock	joh	3.7.2
chat	kar	0.34.0
vscode-codemetrics	kis	1.24.0
vscode-github	Kni	0.30.3
bash-ide-vscode	mad	1.10.2
vscode-azurefunctions	ms-	0.22.1
python	ms-	2020.6.0-qp-new-ls
remote-wsl	ms-	0.44.2
azure-account	ms-	0.8.11
powershell-preview	ms-	2020.6.0
vsliveshare	ms-	1.0.2274
vsliveshare-audio	ms-	0.1.85
vsliveshare-pack	ms-	0.4.0
debugger-for-chrome	msj	4.12.8
autodocstring	njp	0.5.3
vscode-for-node-js-development-pack	nod	2.0.1
subtitles-editor	pep	1.0.4
java	red	0.62.0
vscode-xml	red	0.11.0
code-settings-sync	Sha	3.4.3
vscode-checkstyle	she	1.3.3
vscodeintellicode	Vis	1.2.7
vscode-java-debug	vsc	0.26.0
vscode-java-dependency	vsc	0.10.2
vscode-java-pack	vsc	0.9.1
vscode-java-test	vsc	0.22.4
vscode-maven	vsc	0.21.4
vscode-import-cost	wix	2.12.0
vscode-preview-server	yui	1.3.0
markdown-all-in-one	yzh	3.0.0

[StrictLine]

By now (25th April) the issue still persists, I've got 20% CPU load without doing anything. It's not enough to turn off the sync, I need to disable the extensions completely, in that case the CPU usage sinks to 0% (no user action).

[jscheel]

I can also confirm that this extension causes about 24% load on a cpu core. Disabling fixes immediately.

[schneikai]

Same here on Mac. 20% CPU for Electron Process with the extension enabled. Drops to 2% when disabled.

[philipaarseth]

https://user-images.githubusercontent.com/31098164/167118792-70f0a091-7b24-4cfc-8d6d-789a08724d3a.mov

I have 0% extensionHost idle cpu usage without this extension and when I start profiling extension cpu usage the cpu usage drops from ~30-70% to 10-15%. There may be an obvious good reason, but not gonna lie that looks real shady.