Extension causes high cpu load

[arinzejustin]

• Issue Type: Performance
• Extension Name: vscode-docker
• Extension Version: 1.18.0
• OS Version: Windows_NT x64 10.0.10240
• VS Code version: 1.62.3

⚠️ Make sure to attach this file from your home-directory:
⚠️c:\Users\<name>\AppData\Local\Temp\ms-azuretools.vscode-docker-unresponsive.cpuprofile.txt

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

[bwateratmsft]

@arinzejustin can you add the cpuprofile file?

It's worth mentioning, sometimes CPU usage spikes for no apparent reason and VSCode blames the extension.

[rcjsuen]

I wonder if this is related to #3347. 🤔

[bwateratmsft]

@rcjsuen Do you know if the language server gets launched in the same process? If not, I would suspect that this is not due to #3347, though I'm not entirely sure what conditions trigger VSCode to suggest filing these issues.

[rcjsuen]

Do you know if the language server gets launched in the same process?

I believe this is the code so it looks like it calls child_process.spawn(...).

[bwateratmsft]

Ok. So it's unlikely but still possible that VSCode is tracking the CPU usage of those child processes and associating it back to the extension that spawned it.

Also I see this in the process explorer, so it's definitely a separate process:

[AzCode-Bot]

This issue has been closed automatically because it needs more information and has not had recent activity. See also our issue reporting guidelines.

Happy Coding!