Bug 256454 - [GTK] moving mouse around in YouTube fullscreen mode causes significant jump in CPU usage
Summary: [GTK] moving mouse around in YouTube fullscreen mode causes significant jump ...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKitGTK (show other bugs)
Version: WebKit Nightly Build
Hardware: PC Linux
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks: GLibPerformance
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Reported: 2023-05-08 02:39 PDT by Kdwk
Modified: 2023-05-08 05:54 PDT (History)
3 users (show)

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Attachments
Screencast showing CPU usage when moving mouse VS when playing video (138.56 MB, video/x-matroska)
2023-05-08 02:39 PDT, Kdwk 		no flags Details
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Description Kdwk 2023-05-08 02:39:10 PDT 
Created attachment 466271 [details]
Screencast showing CPU usage when moving mouse VS when playing video

Moving the mouse around in a fullscreen YouTube video to show the player controls increases the CPU usage by about 5 times as when just playing the video with DMABUF sink. Might be related: the YouTube header bar (with YouTube logo and search bar) doesn't show after exiting fullscreen mode and the console output says WebProcess crashed (even though I can still use the website).