I can independently confirm there is ridiculously high CPU usage by any
recent version of firefox-{4-9,10} when displaying any videos.I do not believe this is anything to do with video drivers because the same problem occurs on very different CPUs such as Intel Atom N270 with Intel graphics and Intel Core i7 with nVidia graphics, same on different architectures: 32 and 64 bit, and same under Linux/Ubuntu and under Windows 7 Ultimate (Windows 7U). On Windows 7U 64bit, IE9 plays youtube videos with only 40% CPU load, whereas Firefox 9 on the same videos takes 85-90% load. Similarly, on Linux/Ubuntu Oneiric 11.10 (AMD64), Firefox 9.0.1 with latest version of the Flash plugin takes 90% CPU usage. -- 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/871412 Title: more than 80% cpu usage when watching youtube video (flash or html5) firefox and chromium Status in “firefox” package in Ubuntu: Confirmed Bug description: Whether it's plugin-container or firefox with html5 enabled, watching youtube is cpu consuming. Same thing happens whith chromium-browser. Also when playing a simple ogg file(the one in examples folder) with totem, cpu goes up to 60%. I suppose it's related to intel video drivers. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: firefox 7.0.1+build1+nobinonly-0ubuntu2 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic i686 AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 ApportVersion: 1.23-0ubuntu3 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: elmo 1357 F.... pulseaudio /dev/snd/pcmC0D0p: elmo 1357 F...m pulseaudio BuildID: 20111008085056 CRDA: Error: [Errno 2] Δεν υπάρχει τέτοιο αρχείο ή κατάλογος Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf7db8000 irq 44' Mixer name : 'Realtek ALC269' Components : 'HDA:10ec0269,104383ce,00100004' Controls : 12 Simple ctrls : 7 Channel: release Date: Sun Oct 9 21:12:13 2011 ExecutablePath: /usr/lib/firefox-7.0.1/firefox ForcedLayersAccel: False IfupdownConfig: auto lo iface lo inet loopback InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20111007.1) IpRoute: default via 192.168.1.1 dev eth0 proto static 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.5 metric 1 ProcEnviron: PATH=(custom, no user) LANG=el_GR.UTF-8 SHELL=/bin/bash Profiles: Profile0 (Default) - LastVersion=7.0.1/20111008085056 (Running) RunningIncompatibleAddons: False SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/04/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0103 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: 1005HAGG dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: x.xx dmi.chassis.asset.tag: 0x00000000 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer INC. dmi.chassis.version: x.x dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0103:bd09/04/2009:svnASUSTeKComputerINC.:pn1005HAGG:pvrx.x:rvnASUSTeKComputerINC.:rn1005HAGG:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x: dmi.product.name: 1005HAGG dmi.product.version: x.x dmi.sys.vendor: ASUSTeK Computer INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/871412/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
