[webkit-gtk] extremely slow reflow and/or painting on certain pages (due to xorg xserver 1.16?)
Adrian Perez de Castro
aperez at igalia.com
Wed Sep 17 04:06:26 PDT 2014
Michael Gratton <mike at vee.net> writes:
> I'm running Ephy 3.12.1 w/ WebKitGtk 2.4.5 on the current Ubuntu GNOME
> beta. Recently, certain pages started updating *really* slowly, such
> that it takes a second or two before the effects of scrolling or key
> presses are seen. Duck Duck Go's search interface
> <https://duckduckgo.com/> and results lists are two examples. [...]
Here I also remember DuckDuckGo being sluggish for a while, but the
thing seems to have solved itself.
> It's hard to pin down exactly when the issue started, but I think it is
> related to upgrading to xorg's xserver 1.16.
I am running Xorg server version 1.16.0, so I suspect the Intel video
driver can be a better guess, because the Intel driver and mesa got
several updates for me in the last weeks. I am using version 2.99.916,
so the issue must be somewhere in the versions of the Intel driver in
between versions 2.99.910 and 2.99.916
As a recap, we have the following versions tested:
Xorg Intel driver Slowness?
======== ============= =========
1.15 2.99.910 No
1.16 2.99.914 Yes
1.16 2.99.916 No
If this is a problem caused by the driver, probably it won't be worth
it to provide a workaround in WebKitGTK (and JFTR, it may not be even
possible to workaround).
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