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[Bug 916591] [NEW] The browser causes 20-40% CPU load when displaying an animated gif

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Vlad <916591@xxxxxxxxxxxxxxxxxx>
Date: Sat, 14 Jan 2012 20:49:57 -0000
Reply-to: Bug 916591 <916591@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

When firefox is displaying a gif, for example
http://i.imgur.com/MVKsc.gif , the CPU is under constant 20-40% load and
system feels to run slower. Same load with and without any addons. When
i remove the element which contains the gif via firebug, the load
instantly drops to 1-2%.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox 9.0.1+build1-0ubuntu0.11.10.2
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
NonfreeKernelModules: wl fglrx
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  vlad       1888 F.... pulseaudio
 /dev/snd/controlC0:  vlad       1888 F.... pulseaudio
BuildID: 20111228084940
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfbf00000 irq 52'
   Mixer name	: 'IDT 92HD81B1X5'
   Components	: 'HDA:111d7605,10280447,00100105'
   Controls      : 14
   Simple ctrls  : 9
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xfbe40000 irq 53'
   Mixer name	: 'ATI R6xx HDMI'
   Components	: 'HDA:1002aa01,00aa0100,00100200'
   Controls      : 4
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Channel: release
Date: Sat Jan 14 22:43:13 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
IncompatibleExtensions: LastPass - ID=support@xxxxxxxxxxxx, Version=1.80.0, minVersion=1.9a2, maxVersion=1.9.6, Location=app-profile, Type=extension, Active=Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
IpRoute:
 default via 192.168.0.1 dev eth0  proto static 
 169.254.0.0/16 dev eth0  scope link  metric 1000 
 192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.3  metric 1
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=9.0.1/20111228084940 (Running)
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/19/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A15
dmi.board.name: 0WK2G6
dmi.board.vendor: Dell Inc.
dmi.board.version: A15
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A15
dmi.modalias: dmi:bvnDellInc.:bvrA15:bd07/19/2011:svnDellInc.:pnInspironN5010:pvrA15:rvnDellInc.:rn0WK2G6:rvrA15:cvnDellInc.:ct8:cvrA15:
dmi.product.name: Inspiron N5010
dmi.product.version: A15
dmi.sys.vendor: Dell Inc.

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


** Tags: amd64 apport-bug oneiric running-unity

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/916591

Title:
  The browser causes 20-40% CPU load when displaying an animated gif

Status in “firefox” package in Ubuntu:
  New

Bug description:
  When firefox is displaying a gif, for example
  http://i.imgur.com/MVKsc.gif , the CPU is under constant 20-40% load
  and system feels to run slower. Same load with and without any addons.
  When i remove the element which contains the gif via firebug, the load
  instantly drops to 1-2%.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: firefox 9.0.1+build1-0ubuntu0.11.10.2
  ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
  Uname: Linux 3.0.0-14-generic x86_64
  NonfreeKernelModules: wl fglrx
  AddonCompatCheckDisabled: False
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  vlad       1888 F.... pulseaudio
   /dev/snd/controlC0:  vlad       1888 F.... pulseaudio
  BuildID: 20111228084940
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfbf00000 irq 52'
     Mixer name	: 'IDT 92HD81B1X5'
     Components	: 'HDA:111d7605,10280447,00100105'
     Controls      : 14
     Simple ctrls  : 9
  Card1.Amixer.info:
   Card hw:1 'Generic'/'HD-Audio Generic at 0xfbe40000 irq 53'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100200'
     Controls      : 4
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Channel: release
  Date: Sat Jan 14 22:43:13 2012
  ForcedLayersAccel: False
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  IncompatibleExtensions: LastPass - ID=support@xxxxxxxxxxxx, Version=1.80.0, minVersion=1.9a2, maxVersion=1.9.6, Location=app-profile, Type=extension, Active=Yes
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  IpRoute:
   default via 192.168.0.1 dev eth0  proto static 
   169.254.0.0/16 dev eth0  scope link  metric 1000 
   192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.3  metric 1
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  Profiles: Profile0 (Default) - LastVersion=9.0.1/20111228084940 (Running)
  RunningIncompatibleAddons: True
  SourcePackage: firefox
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/19/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A15
  dmi.board.name: 0WK2G6
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A15
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A15
  dmi.modalias: dmi:bvnDellInc.:bvrA15:bd07/19/2011:svnDellInc.:pnInspironN5010:pvrA15:rvnDellInc.:rn0WK2G6:rvrA15:cvnDellInc.:ct8:cvrA15:
  dmi.product.name: Inspiron N5010
  dmi.product.version: A15
  dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
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Follow ups

[Bug 916591] Re: The browser causes 20-40% CPU load when displaying an animated gif
From: Vlad, 2012-01-14
[Bug 916591] [NEW] The browser causes 20-40% CPU load when displaying an animated gif
From: Vlad, 2012-01-14
References

[Bug 916591] [NEW] The browser causes 20-40% CPU load when displaying an animated gif
From: Vlad, 2012-01-14