compiz team mailing list archive

[Daniel van Vugt <vanvugt@xxxxxxxxx>]

In order to avoid this bug becoming a vague never-ending discussion
about hearsay desktop performance, I have updated the bug title and
description to be more specific and reproducible. Now the bug is
confirmed.

If you can't reproduce the bug using the exact test case in the Bug
Description then please don't add any more comments to this one and log
a new bug instead.

** Summary changed:

- compiz 3d performance regression
+ Running compiz makes 3D apps like glxspheres (VirtualGL) perform worse.

** Description changed:

+ TEST CASE:
+ 
+ 1. Install VirtualGL from http://sourceforge.net/projects/virtualgl/files/VirtualGL/2.2.90%20%282.3beta1%29/
+ 2. Run /opt/VirtualGL/bin/glxspheres{64}
+ 3. Note the frame rate that glxspheres reports.
+ 
+ This frame rate is significantly lower when running compiz (Unity), than
+ when running Unity-2D or Gnome Shell (3.2).
+ 
+ ORIGINAL DESCRIPTION:
+ 
  A recent update to compiz in oneiric has had a big impact on 3d
  performance. The desktop feels more sluggish, and the glxspheres
  benchmark indicates about half the performance compared to metacity and
  mutter (on my Sandy Bridge GPU I get 30-32 fps in unity/compiz vs 59-60
  fps in both unity-2d/metacity and gnome-shell/mutter). Previously compiz
  matched the performance of metacity and mutter.
  
  I also tested the oneiric beta2 live CD (amd64) and performance was
  similar (ie regressed compared to beta1).
  
  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: compiz 1:0.9.5.94+bzr20110919-0ubuntu1
  Uname: Linux 3.1.0-rc7-git-20110927.1407 x86_64
  .tmp.unity.support.test.0:
  
  ApportVersion: 1.23-0ubuntu1
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,text,mousepoll,gnomecompat,imgpng,snap,grid,wall,imgjpeg,move,place,vpswitch,session,compiztoolbox,resize,regex,animation,workarounds,unitymtgrabhandles,expo,fade,scale,ezoom,scaleaddon,unityshell]
  CompositorRunning: None
  Date: Wed Sep 28 09:15:49 2011
  DistUpgraded: Log time: 2011-09-02 11:56:50.062543
  DistroCodename: oneiric
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:050e]
   nVidia Corporation GF106 [GeForce GT 555M] [10de:0df4] (rev ff) (prog-if ff)
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
  MachineType: Dell Inc. Dell System XPS L502X
  PackageArchitecture: all
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.1.0-rc7-git-20110927.1407 root=UUID=67083065-b92e-4596-a218-817c1dfc8ae7 ro quiet splash i915.i915_enable_rc6=1 pcie_aspm=force i915.lvds_downclock=1 i915.i915_enable_fbc=1 vt.handoff=7
  SourcePackage: compiz
  UpgradeStatus: Upgraded to oneiric on 2011-09-27 (0 days ago)
  dmi.bios.date: 03/25/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A04
  dmi.board.name: 0NJT03
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA04:bd03/25/2011:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn0NJT03:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L502X
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.5.94+bzr20110919-0ubuntu1
  version.ia32-libs: ia32-libs 20090808ubuntu23
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

** Changed in: compiz (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/861061

Title:
  Running compiz makes 3D apps like glxspheres (VirtualGL) perform
  worse.

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