[Webkit-unassigned] [Bug 245427] New: [GTK] [2.38.0] High CPU usage when the browser window is in the background

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=245427

            Bug ID: 245427
           Summary: [GTK] [2.38.0] High CPU usage when the browser window
                    is in the background
           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: berto at igalia.com
                CC: bugs-noreply at webkitgtk.org

I'm using epiphany 3.38.2 to access a chat webapp, which I normally have open but in the background when I'm not using it.

Since I upgraded to WebKitGTK 2.38.0 I notice that the browser starts to use a lot of CPU when it should be mostly idle. The problem seems to happen (this is my guess) when there's new activity in the chat room and disappears when I focus the browser window.

perf-top shows fast_composite_scaled_bilinear_sse2_8888_8_8888_none_OVER as the top symbol in the UI process, and the web process is constantly running different WebCore and JSC functions.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20220920/a20ded1b/attachment.htm>