Summary:
This was a X11 extension mainly developed for Tizen. By now I can only
find it packaged by Gentoo as the only Linux distribution and Tizen is
now longer using it either. Bringing it up during EDD and on the mailing
list did not come up with any users.
I think we can go ahead and deprecate the API and remove the
functionality.
Reviewers: raster, cedric, devilhorns, zmike
Reviewed By: devilhorns
Subscribers: cedric, #reviewers, #committers
Tags: #efl
Differential Revision: https://phab.enlightenment.org/D10823
so i've been wondering what is going on for a few days... and i've
figured it out finally... my mouse seems ot like to generate 1000
events per second. not your usual 100 or 200. it only happened on this
one machine so i was wondering what on earth was up. this machine was
different in other ways like an arm cpu, differing gpu (rx550),
different distro and so on. this is creating a storm of motion events..
and this is causing all sorts of overhead in just trying to deal with
them all like generate more internal events, emit signals for every
one of them and so on. there is no attempt to play catch-up or
anything - just build up a bigger and bigger queue of them to deal
with. this is NOT GOOD. this restores our old commented out event
skipper that got commented out during some xcb work actually -
not on its own. it was a huge xcb patch that commented it out.
this restores it and makes it a little cleaner with a bool and now the
perf issues i was seeing are gone. this is such a major performance
fix that this deserves a backport.
@fix @optimize
in some cases loading an xmodmap on enlightenment startup can trigger an infinite
number of identical events which hard locks the xserver for a very, very long time
@fix
as per mailing list discussion about dropping xcb support now. it
hasn't been complete for a long time, thus not recommented for being
turned on. as we are moving to a wayland world xcbmakes even less
sense. as agreed, time to clean up a bit and remove a distraction as
well as not well tested code. this also updates po's too.
@feature
Carsten Haitzler
Stefan Schmidt
Mike Blumenkrantz
Hannes Janetzek