microsoft / microsoft/vscode-edge-devtools

High CPU and janky experience while using Edge Tools Screencast

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#931 4 comments 5 reactions 0 assignees View on GitHub

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bug tracked
Dominant language
TypeScript
Stars
827
Forks
358
Avg merge
20h 32m
Merged PRs (30d)
10

Description

Environment (please complete the following information):

  • MacOS 12.3
  • 15" Macbook Pro (2017)
  • VS Code: 1.65.2
  • Edge dev tools v1.4.5

Describe the bug:

I just cloned this repo and while playing around with the edge dev tools / debugger, I'm noticing high CPU rates. Especially so when the screencast is in view. Navigating the sample app is quite janky / unresponsive. This has a massive impact on the overall experience of using the screencast.

Repro steps:

Clone https://github.com/codepo8/simple-to-do, open vscode and start debugger with http-server

Expected behavior:

For the overall experience to feel snappy without high cpu levels

Additional context:

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue by cloning the linked simple-to-do repository, opening it in VS Code, and starting the debugger with http-server. Compare CPU usage and responsiveness with the Edge Tools Screencast visible and hidden. Done means the sample app feels responsive during navigation without the reported high CPU usage.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript, vscode
Domain
devtools, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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