MicrosoftEdge / MicrosoftEdge/WebView2Feedback

[Problem/Bug]: 1.0.2151.40 .NET Performance Regression?

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#4,151 1 comment 0 reactions 2 assignees View on GitHub

@champnic is already working on this.

Since Nov 13, 2023.

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Description

What happened?

This is somewhat subjective, but in my application I'm noticing quite a bit of lag instantiating the WebView control with the latest 1.0.2151.40 release of the .NET library.

Switching back and forth between the previous version 1.0.2008.41 and the above there's a noticeable slowdown in first render and activation. The old version pretty much snapped into place with the slightest hint of lag, while the new version the WV control comes up blank first for a fraction of a second before filling.

Doing many A/B runs it's quite noticeable.

This appears to be an issue with the .NET (WPF) library, not the runtime as in the A/B tests the runtime stays the same.

WV Runtime: 199.0.2151.44

Importance

Moderate. My app's user experience is affected, but still usable.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

199.0.2151.44

SDK Version

1.0.2151.40

Framework

WPF

Operating System

Windows 11

OS Version

No response

Repro steps

n/a

subjective review

I can give access to private repo (Nic Champ has access)

Regression

Regression in newer SDK

Last working version (if regression)

1.0.2008.41

Contributor guide

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First steps

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  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.

Assessment

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