[Bug 555595] Re: Intel graphics performance regression in 2.6.32-19 lucid kernel update (was: Firefox Slows Down Compiz)

[Timo Jyrinki]

** Changed in: compiz (Ubuntu)
       Status: New => Invalid

** Description changed:

  Latest status on the bug report:
  
- I think this would be a kernel regression with intel performance. Even
- typing in Firefox feels sluggish. Appears both with lucid's 2.9 intel
- X.org driver and 2.11 from xorg-edgers.
+ I think this would be a kernel regression in 2.6.32-19 with Intel
+ performance. Even typing in Firefox feels sluggish. Appears both with
+ lucid's 2.9 intel X.org driver and 2.11 from xorg-edgers.
  
  The problem is seen in sluggish behavior as soon as one or more
  applications like Firefox or Ubuntu Software Center are running. The
  application in use seems to be consuming close to 100% CPU when whatever
  even slightly graphical is done.
  
- The problem was not there in 2.6.32-16 kernel.
+ The problem was not there in 2.6.32-16 kernel. Not sure about -17 and
+ -18, but probably at least -17 was right. More input and testing
+ welcome.
+ 
+ Possible: amd64 only? bryceh reported not having the problem.
+ 
+ 
  
  Original unmodified bug report:
  
  Binary package hint: compiz
  
  Desktop effects are noticeably slower while Firefox is open. My display
  adapter is an integrated Intel® Graphics Media Accelerator 4500M. I
  tested this using the built in Benchmark plug-in.
  
  When Firefox is not running I get a solid 60fps (vsync is enable I
  believe). Having a few GTK+ applications (such as nautilus, gedit.. etc)
  open does not slow the frame rate even when running the expo plug-in.
  Running Firefox causes a noticeable slowdown in the expo plug-in and
  desktop switching. The frame rate drops to 30fps and below and feels
  choppy.
  
  I have not modified the configuration of either compiz or my intel
  driver. I am running Lucid on AMD64. This occurs on both the Generic and
  the Preempt kernels.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: compiz 1:0.8.4-0ubuntu13
  ProcVersionSignature: Ubuntu 2.6.32-19.28-preempt 2.6.32.10+drm33.1
  Uname: Linux 2.6.32-19-preempt x86_64
  Architecture: amd64
  CompizPlugins: [core,ccp,move,resize,place,decoration,dbus,mousepoll,gnomecompat,png,svg,imgjpeg,text,commands,neg,wall,snap,animation,scale,scaleaddon,expo,staticswitcher,regex,resizeinfo,workarounds,ezoom,vpswitch,fade,session]
  Date: Mon Apr  5 04:35:54 2010
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
  MachineType: ASUSTeK Computer Inc. K50IJ
  PackageArchitecture: all
  PciDisplay: 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 09)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-preempt root=UUID=f9bd8d62-8fc0-4002-92a9-9de4abf10649 ro quiet splash
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  RelatedPackageVersions:
   xserver-xorg 1:7.5+3ubuntu1
   libgl1-mesa-glx 7.7-4ubuntu1
   libdrm2 2.4.18-1ubuntu2
   xserver-xorg-video-intel 2:2.9.1-3ubuntu1
   xserver-xorg-video-ati 1:6.12.192-2ubuntu2
  SourcePackage: compiz
  XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
  dmi.bios.date: 12/04/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 217
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: K50IJ
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr217:bd12/04/2009:svnASUSTeKComputerInc.:pnK50IJ:pvr1.0:rvnASUSTeKComputerInc.:rnK50IJ:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: K50IJ
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.
  glxinfo: Error: [Errno 2] No such file or directory
  system: distro = Ubuntu, architecture = x86_64, kernel = 2.6.32-19-preempt

-- 
Intel graphics performance regression in 2.6.32-19 lucid kernel update (was: Firefox Slows Down Compiz)
https://bugs.launchpad.net/bugs/555595
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