** Attachment added: "hardinfo_report.html" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/774605/+attachment/2101838/+files/hardinfo_report.html
** Description changed: I have very bad performance with my Core i7 Sandy Bridge CPU, especially when multitasking. Windows will hang frequently, and games are pretty much unplayable. I have attached a report generated by Hardware Info, containing some - benchmarks, and the model of the CPU in question. + benchmarks, and the model of the CPU in question. This also happens in + Natty. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-2.6.38-8-generic 2.6.38-8.42 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2 Uname: Linux 2.6.38-8-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: seph 1727 F.... pulseaudio - seph 2081 F.... steam.exe - /dev/snd/controlC1: seph 1727 F.... pulseaudio - /dev/snd/pcmC1D0p: seph 1727 F...m pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: seph 1727 F.... pulseaudio + seph 2081 F.... steam.exe + /dev/snd/controlC1: seph 1727 F.... pulseaudio + /dev/snd/pcmC1D0p: seph 1727 F...m pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: - Card hw:0 'PCH'/'HDA Intel PCH at 0xf7d00000 irq 49' - Mixer name : 'Intel CougarPoint HDMI' - Components : 'HDA:10ec0269,104d5300,00100004 HDA:80862805,104d5300,00100000' - Controls : 16 - Simple ctrls : 8 + Card hw:0 'PCH'/'HDA Intel PCH at 0xf7d00000 irq 49' + Mixer name : 'Intel CougarPoint HDMI' + Components : 'HDA:10ec0269,104d5300,00100004 HDA:80862805,104d5300,00100000' + Controls : 16 + Simple ctrls : 8 Card1.Amixer.info: - Card hw:1 'Headset'/'Logitech Logitech G930 Headset at usb-0000:00:1d.0-1.3, full speed' - Mixer name : 'USB Mixer' - Components : 'USB046d:0a1f' - Controls : 4 - Simple ctrls : 2 + Card hw:1 'Headset'/'Logitech Logitech G930 Headset at usb-0000:00:1d.0-1.3, full speed' + Mixer name : 'USB Mixer' + Components : 'USB046d:0a1f' + Controls : 4 + Simple ctrls : 2 Date: Sun May 1 12:03:35 2011 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=62c8caa9-2c6a-4a0c-88e7-4fc6ee2f40c7 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413) MachineType: Sony Corporation VPCCB1AFJ ProcEnviron: - LANGUAGE=en_US:en - LANG=en_US.UTF-8 - SHELL=/bin/bash + LANGUAGE=en_US:en + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=8463b5ba-9e9a-4374-b21e-609344176f50 ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-2.6.38-8-generic N/A - linux-backports-modules-2.6.38-8-generic N/A - linux-firmware 1.52 + linux-restricted-modules-2.6.38-8-generic N/A + linux-backports-modules-2.6.38-8-generic N/A + linux-firmware 1.52 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/17/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: R0230V2 dmi.board.asset.tag: N/A dmi.board.name: VAIO dmi.board.vendor: Sony Corporation dmi.board.version: N/A dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Sony Corporation dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0230V2:bd02/17/2011:svnSonyCorporation:pnVPCCB1AFJ:pvrJ004HQRP:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.name: VPCCB1AFJ dmi.product.version: J004HQRP dmi.sys.vendor: Sony Corporation -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/774605 Title: Bad performance with Sandy Bridge CPU -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
