[Webkit-unassigned] [Bug 210561] [GTK] excessive wakeups/polling due to gdk_frame_clock_begin_updating

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=210561

--- Comment #27 from Milan Crha <mcrha at redhat.com> ---
Evolution can invoke repaint of the message preview, indirectly, when the theme style changes. It can happen also when the window gets focus or loses it. I currently do not know what else could cause that, not periodically. Maybe install debuginfo for (or build with it) the evolution itself (not WebKit, it's too huge) and when it happens, supposing there will be enough time to do it, catch a series of backtraces of the offending process, which may or may not shed a bit of light on this. I catch backtraces with this command:

   for i in {1..10}; do gdb --batch --ex "t a a bt" -pid=`pidof evolution` &>bt$i.txt; sleep 0.1; done

You can tweak the delay between them with the sleep command (set to 100ms in the command). The backtraces may not expose any private information, but, please, check the files for any private information, like passwords, email address, server addresses,... I usually search for "pass" at least (quotes for clarity only). Just in case.

I do not know whether we should keep this here, as the bug itself is fixed. Feel free to open a new bug on the evolution side and we can investigate there [1].

[1] https://gitlab.gnome.org/GNOME/evolution/issues/new

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