Srijan Kumar Sharma, this report is only scoped to disk performance with AMD Carrizo FCH Controller (not keyboard, wifi, booting, or any other problem).
Hence, it will help immensely if you filed a new report with the Ubuntu repository kernel (not mainline/upstream) via a terminal: ubuntu-bug linux Please feel free to subscribe me to it. For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1616830 Title: Bad disk performance with AMD Carrizo FCH controllers Status in linux package in Ubuntu: Triaged Bug description: I have had a problem where importing database was much slower in a dual-boot machine when booted into ubuntu compared to running ubuntu inside virtualbox in windows 10. It seems Ubuntu does not like Amd carrizo fch I collected some information and posted here (and attached as text file to report): https://answers.launchpad.net/ubuntu/+question/360373 To put it short, the disk performs up to 10 times better inside virtualbox. (yes I thought about caches but VM box also has half the memory and they must favor ubuntu running on real hardware with twice ram....) I believe this is a kernel/driver related problem since it directly effects disk performance. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-34-generic 4.4.0-34.53 ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15 Uname: Linux 4.4.0-34-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-34-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jobgo 3381 F.... pulseaudio /dev/snd/controlC0: jobgo 3381 F.... pulseaudio Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer' Date: Thu Aug 25 12:36:05 2016 HibernationDevice: RESUME=UUID=ba38c925-a729-4e33-a08f-a7573abd2826 InstallationDate: Installed on 2016-08-23 (1 days ago) InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: HP HP Pavilion Notebook ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic.efi.signed root=UUID=cd8e7352-609f-4ebd-83ba-24335f6eece9 ro PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-34-generic N/A linux-backports-modules-4.4.0-34-generic N/A linux-firmware 1.157.3 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/09/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F.17 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 80B5 dmi.board.vendor: HP dmi.board.version: 81.29 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF.17:bd03/09/2016:svnHP:pnHPPavilionNotebook:pvr:rvnHP:rn80B5:rvr81.29:cvnHP:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion Notebook dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1616830/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
