← Back to team overview

compiz team mailing list archive

[Bug 1079918] [NEW] Poor performance with Compiz scale plugin: lag when showing windows


Public bug reported:

What was expected:
-smooth transition to the window overwies when clicking  a launcher icon with more than one window open, or when using the super+w shortcut to show all windows on the workspace.

What happened instead:
-there was considerable lag when displaying the windows: stuttering and stalling occurred.

Possible causes:
1) the fade in/out of other visible windows when opening the overview (only applies to clicking launcher icon);
2) the new "close window/window title" addon is initializing at the wrong time/place, causing unnecessary gpu/cpu load.

This issue was not present in Precise, ie before the new close button plugin, but I now experience it in Quantal
One of the most common occurrances is that the windows pause halfway through the animation for about 1/8 of a second before continuing the animation.
Another is that the launcher click to spread windows animation pauses about 1/4 of the way through for about 1/8 of a second before continuing.  While the animation is lagging I can see the partly-faded windows in the background.

If I new where/how to start I'd look at the code for the new window
title/close button plugin and try to figure out why it might be causing
lag.  I'm not entirely sure, but I think that it may be being called too

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: compiz 1:
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Fri Nov 16 17:20:51 2012
DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus: bcmwl,, 3.5.0-18-generic, x86_64: installed
 Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:043f]
InstallationDate: Installed on 2012-11-13 (2 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: Acer TravelMate 8372
MarkForUpload: True
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-18-generic root=UUID=2ab95791-9cc1-4555-97f4-e0bae9ae854f ro quiet splash vt.handoff=7
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/14/2010
dmi.bios.vendor: Acer
dmi.bios.version: V1.07
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: TravelMate 8372
dmi.board.vendor: Acer
dmi.board.version: PSMBOU-1234567
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: None
dmi.modalias: dmi:bvnAcer:bvrV1.07:bd12/14/2010:svnAcer:pnTravelMate8372:pvrV1.07:rvnAcer:rnTravelMate8372:rvrPSMBOU-1234567:cvnAcer:ct10:cvrNone:
dmi.product.name: TravelMate 8372
dmi.product.version: V1.07
dmi.sys.vendor: Acer
version.compiz: compiz 1:
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.39-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120913.8637f772-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: amd64 apport-bug compiz-0.9 quantal running-unity ubuntu

You received this bug notification because you are a member of compiz
packagers, which is subscribed to compiz in Ubuntu.

  Poor performance with Compiz scale plugin: lag when showing windows

To manage notifications about this bug go to:

Follow ups