[Webkit-unassigned] [Bug 250829] MiniBrowser takes 12s to render https://www.wikipedia.org

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=250829

Claudio Saavedra <csaavedra at igalia.com> changed:

           What    |Removed                     |Added
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                 CC|                            |csaavedra at igalia.com

--- Comment #1 from Claudio Saavedra <csaavedra at igalia.com> ---
> 1. Open https://www.wikipedia.org in MiniBrowser
> 
> $ /usr/lib/x86_64-linux-gnu/webkit2gtk-4.1/MiniBrowser
> https://www.wikipedia.org/
> 
> The system goes to 100% CPU on one of the cores during about 12 seconds. The
> core with high CPU changes over time. 
> 
> - MiniBrowser seems unresponsive while loading (resizing the window does not
> resize the webview).
> - Once the page loads, resizing MiniBrowser's window seems to do some
> flickering, high CPU consumption. 
> - NOTE: This page has several SVG images.

I remember that loading the landing page of Wikipedia was particularly slow due to one of the SVGs that is (IIRC) embedded as a data url in the main document. I don't remember the details and I might not have filed a bug about it, so that might be the slowdown you see. I didn't analyze it further though.

As for the other issues, I don't think it's going to be possible to track everything in the same bug report, as they are not necessaarily the same issues. And "all pages should load quickly" is not an actionable task.

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