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Daniel van Vugt a5e6dd52d2 iconGrid: Defer and group animation cleanup 
The `reactive` property of icon actors was being restored 24 times over
the course of the spring animation, all at slightly different times as
each icon finished animating at different times.

The problem is that toggling `reactive` on an `StWidget` incurs a style
change of the `insensitive` pseudo class, and style changes would quickly
queue relayouts incurring full stage reallocation. This occurred many times
during a spring animation hogging the CPU and limiting the frame rate.

The solution is defer and batch the cleanup for all icons until after the
last icon has finished animating. This way the CPU impact of the style
change and stage relayout isn't felt during the animation so the frame
rate remains higher and smoother. The overall CPU usage of the animation
is also reduced as the remaining relayouts are much more likely to be
grouped into a single frame.

Icon spring animation performance on an i7-7700:
Before: 83% CPU and 47 FPS
After : 78% CPU and 54 FPS
which is about a 22% increase in performance per clock (FPS/CPU).

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/253
2018-10-30 18:01:05 +00:00
.settings Convert all JS style to be uniform, add Eclipse settings bits 2008-11-28 20:12:20 +00:00
browser-plugin docs: Use Markdown 2018-05-23 19:03:01 +02:00
data dbus: Move all interface descriptions into the resource 2018-09-17 07:34:49 +00:00
docs/reference shell: Remove ShellGenericContainer 2018-10-08 22:44:14 -03:00
js iconGrid: Defer and group animation cleanup 2018-10-30 18:01:05 +00:00
man man: Update project website 2018-01-07 21:39:18 +01:00
meson build: Run postinstall script where necessary 2018-04-09 19:19:33 +00:00
po Update Malayalam translation 2018-10-28 14:08:07 +00:00
src shell: Remove ShellGenericContainer 2018-10-08 22:44:14 -03:00
subprojects build: Update gvc to support renamed options 2018-01-30 13:37:38 +01:00
tests tests: Stop using Shell.GenericContainer 2018-10-08 22:43:01 -03:00
tools tools: Migrate changed overrides settings 2018-07-31 18:36:26 +00:00
.gitignore data: Add README and supporting script to update keyboard layouts from CLDR 2018-02-05 17:46:57 +01:00
.gitmodules submodules: Replace non-functional git.gnome.org URL by GNOME Gitlab URL 2018-09-25 08:41:30 +02:00
.project Convert all JS style to be uniform, add Eclipse settings bits 2008-11-28 20:12:20 +00:00
config.h.meson Add check_cloexec_fds debug command 2018-07-30 23:11:41 +00:00
COPYING Changed obsolete FSF postal address. 2014-01-08 04:35:14 +07:00
gnome-shell.doap doap: add <programming-language> 2014-07-31 17:48:46 +02:00
HACKING.md Fix enumeration in HACKING.md 2018-10-14 14:05:04 +02:00
meson_options.txt build: Stop detecting features automatically 2017-11-30 00:24:53 +01:00
meson.build Bump version to 3.30.1 2018-10-08 21:33:06 +02:00
NEWS Bump version to 3.30.1 2018-10-08 21:33:06 +02:00
README.md Fix README link 2018-09-01 15:01:46 +01:00

README.md

GNOME Shell

GNOME Shell provides core user interface functions for the GNOME 3 desktop, like switching to windows and launching applications. GNOME Shell takes advantage of the capabilities of modern graphics hardware and introduces innovative user interface concepts to provide a visually attractive and easy to use experience.

For more information about GNOME Shell, including instructions on how to build GNOME Shell from source and how to get involved with the project, see the project wiki.

Bugs should be reported to the GNOME bug tracking system.

License

GNOME Shell is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for details.