| 2016-04-05 06:09:58 |
Alkis Georgopoulos |
bug |
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added bug |
| 2016-04-05 17:01:05 |
Alkis Georgopoulos |
attachment added |
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x11perf.ods https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1566157/+attachment/4624852/+files/x11perf.ods |
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| 2016-04-08 06:54:37 |
Alkis Georgopoulos |
attachment added |
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glmark2.zip https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1566157/+attachment/4628575/+files/glmark2.zip |
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| 2016-04-15 17:54:25 |
Alberts Muktupāvels |
bug |
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added subscriber Dmitry Shachnev |
| 2016-04-17 11:50:54 |
Alberts Muktupāvels |
attachment added |
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test.tar.xz https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1566157/+attachment/4638613/+files/test.tar.xz |
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| 2016-04-17 14:45:26 |
Dmitry Shachnev |
attachment added |
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stacktrace.txt https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1566157/+attachment/4638675/+files/stacktrace.txt |
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| 2016-04-18 19:35:44 |
Alberts Muktupāvels |
attachment removed |
test.tar.xz https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/1566157/+attachment/4638613/+files/test.tar.xz |
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|
| 2016-04-24 18:31:05 |
Dmitry Shachnev |
description |
I did the following benchmarks between `metacity --no-composite`, `metacity --composite`, and `compiz`, in Ubuntu 16.04.
First, I disabled vsync:
$ cat ~/.drirc
<device screen="0" driver="dri2">
<application name="Default">
<option name="vblank_mode" value="0"/>
</application>
</device>
Then I ran glxgears as follows:
$ metacity --no-composite --replace & sleep 5 && glxgears & sleep 20 && killall glxgears
29564 frames in 5.0 seconds = 5912.721 FPS
29729 frames in 5.0 seconds = 5945.777 FPS
$ metacity --composite --replace & sleep 5 && glxgears & sleep 20 && killall glxgears
10366 frames in 5.0 seconds = 2073.057 FPS
10194 frames in 5.0 seconds = 2038.702 FPS
$ compiz --replace & sleep 5 && glxgears & sleep 20 && killall glxgears
37633 frames in 5.0 seconds = 7522.813 FPS
37990 frames in 5.0 seconds = 7597.965 FPS
As a second set of benchmarks, I ran glxgears -fullscreen as follows:
$ metacity --no-composite --replace & sleep 5 && glxgears -fullscreen & sleep 20 && killall glxgears
1652 frames in 5.0 seconds = 330.296 FPS
1667 frames in 5.0 seconds = 333.281 FPS
$ metacity --composite --replace & sleep 5 && glxgears -fullscreen & sleep 20 && killall glxgears
886 frames in 5.0 seconds = 177.007 FPS
891 frames in 5.0 seconds = 178.099 FPS
$ compiz --replace & sleep 5 && glxgears -fullscreen & sleep 20 && killall glxgears
1830 frames in 5.0 seconds = 365.868 FPS
1847 frames in 5.0 seconds = 369.242 FPS
Normalized results (with compiz=100):
================================
Windowed:
metacity --no-composite: 78 FPS
metacity --composite: 27 FPS
compiz: 100 FPS
Full screen:
metacity --no-composite: 90 FPS
metacity --composite: 48 FPS
compiz: 100 FPS
So `metacity --composite` in this test was about 2 times slower than `metacity --no-composite` and about 3 times slower than `compiz`.
This test was done an "Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz" CPU, with the following embedded graphics card:
$ lspci -nn -k | grep -A 2 VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)
Subsystem: Gigabyte Technology Co., Ltd Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [1458:d000]
Kernel driver in use: i915
I'll upload more tests if I find anything newsworthy. |
[Impact]
Metacity's performance is about 2 times slower than it was in 14.04 version. It is a regression from previous LTS and impacts users with slow hardware.
[Test Case]
Run some performance checker like x11perf or glmark2, see the reporter's comments below for detailed info.
[Regression Potential]
This fix is tested by several users and seems to not have any regressions.
-----------------------------------------------------------------------------
I did the following benchmarks between `metacity --no-composite`, `metacity --composite`, and `compiz`, in Ubuntu 16.04.
First, I disabled vsync:
$ cat ~/.drirc
<device screen="0" driver="dri2">
<application name="Default">
<option name="vblank_mode" value="0"/>
</application>
</device>
Then I ran glxgears as follows:
$ metacity --no-composite --replace & sleep 5 && glxgears & sleep 20 && killall glxgears
29564 frames in 5.0 seconds = 5912.721 FPS
29729 frames in 5.0 seconds = 5945.777 FPS
$ metacity --composite --replace & sleep 5 && glxgears & sleep 20 && killall glxgears
10366 frames in 5.0 seconds = 2073.057 FPS
10194 frames in 5.0 seconds = 2038.702 FPS
$ compiz --replace & sleep 5 && glxgears & sleep 20 && killall glxgears
37633 frames in 5.0 seconds = 7522.813 FPS
37990 frames in 5.0 seconds = 7597.965 FPS
As a second set of benchmarks, I ran glxgears -fullscreen as follows:
$ metacity --no-composite --replace & sleep 5 && glxgears -fullscreen & sleep 20 && killall glxgears
1652 frames in 5.0 seconds = 330.296 FPS
1667 frames in 5.0 seconds = 333.281 FPS
$ metacity --composite --replace & sleep 5 && glxgears -fullscreen & sleep 20 && killall glxgears
886 frames in 5.0 seconds = 177.007 FPS
891 frames in 5.0 seconds = 178.099 FPS
$ compiz --replace & sleep 5 && glxgears -fullscreen & sleep 20 && killall glxgears
1830 frames in 5.0 seconds = 365.868 FPS
1847 frames in 5.0 seconds = 369.242 FPS
Normalized results (with compiz=100):
================================
Windowed:
metacity --no-composite: 78 FPS
metacity --composite: 27 FPS
compiz: 100 FPS
Full screen:
metacity --no-composite: 90 FPS
metacity --composite: 48 FPS
compiz: 100 FPS
So `metacity --composite` in this test was about 2 times slower than `metacity --no-composite` and about 3 times slower than `compiz`.
This test was done an "Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz" CPU, with the following embedded graphics card:
$ lspci -nn -k | grep -A 2 VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)
Subsystem: Gigabyte Technology Co., Ltd Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [1458:d000]
Kernel driver in use: i915
I'll upload more tests if I find anything newsworthy. |
|
| 2016-04-26 08:58:30 |
Martin Pitt |
nominated for series |
|
Ubuntu Yakkety |
|
| 2016-04-26 08:58:30 |
Martin Pitt |
bug task added |
|
metacity (Ubuntu Yakkety) |
|
| 2016-04-26 08:58:30 |
Martin Pitt |
nominated for series |
|
Ubuntu Xenial |
|
| 2016-04-26 08:58:30 |
Martin Pitt |
bug task added |
|
metacity (Ubuntu Xenial) |
|
| 2016-04-26 08:59:03 |
Martin Pitt |
metacity (Ubuntu Xenial): status |
New |
Fix Committed |
|
| 2016-04-26 08:59:05 |
Martin Pitt |
bug |
|
|
added subscriber Ubuntu Stable Release Updates Team |
| 2016-04-26 08:59:10 |
Martin Pitt |
bug |
|
|
added subscriber SRU Verification |
| 2016-04-26 08:59:19 |
Martin Pitt |
tags |
|
verification-needed |
|
| 2016-04-26 10:53:50 |
Alkis Georgopoulos |
tags |
verification-needed |
verification-done |
|
| 2016-04-26 23:06:26 |
Launchpad Janitor |
metacity (Ubuntu Yakkety): status |
New |
Fix Released |
|
| 2016-05-09 08:44:36 |
Launchpad Janitor |
metacity (Ubuntu Xenial): status |
Fix Committed |
Fix Released |
|
| 2016-05-09 08:44:43 |
Martin Pitt |
removed subscriber Ubuntu Stable Release Updates Team |
|
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|
