[Webkit-unassigned] [Bug 205561] New: [GTK][GStreamer] Extremelly high CPU usage due to video playback

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=205561

            Bug ID: 205561
           Summary: [GTK][GStreamer] Extremelly high CPU usage due to
                    video playback
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: svillar at igalia.com
                CC: bugs-noreply at webkitgtk.org

Steps to reproduce:

1- Open https://www.nytimes.com/interactive/2019/12/20/opinion/location-tracking-smartphone-marketing.html

The CPU usage rockets to 600% on my laptop and it keeps that way as long as the page is opened. Even if I scroll to a point where only text is shown the CPU usage is super high.

Attaching to the WebProcess with gdb shows tons of GStreamer threads (>60). I've built WebKit with --no-video and the CPU usage goes down to 6-7% as any other web page.

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