[webkit-gtk] WK2/JSC idle wakeups and CPU utilisation
mike at vee.net
Sun Dec 3 01:36:32 PST 2017
On Sun, Dec 3, 2017 at 8:02 PM, Carlos Garcia Campos
<cgarcia at igalia.com> wrote:
> 60 times per second and when visible sounds like the paint timer.
Yeah, same here. I attached a debug statement to the draw signal on the
main window and that showed drawing going quiescent after a few seconds
when application activity ceased, while the poll() churn continued.
Shame gdk_window_set_debug_updates() doesn't seem to work any more.
>> This seems to also occur for Epiphany,
>> but not in other GTK+ apps such as Gitg, or Polari. Hence it looks
>> a WebKit2 issue.
> Doesn't gitg use webkit2 as well?
I think it used to, but now uses GtkSourceView.
>> Geary is setting
>> WEBKIT_DISABLE_COMPOSITING_MODE=1 in main() right after launching,
>> commenting that out doesn't seem to make any difference.
> Please don't do that, the env var is not expected to be used by
> applications, only for users/developers as a debug tool. Use
> webkit_settings_set_hardware_acceleration_policy() instead.
Yeah I know, I know, it's on my todolist.
> File bug report, please. If you can attach strace, sysprof, etc output
> and anything else that could help to identify the source of the wake
⊨ Michael Gratton, Percept Wrangler.
More information about the webkit-gtk