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[Bug 1447570] Re: Unity suffers severe performance drops occasially

 

Well, I think that we can rule out the proprietary Spotify client, as I
haven't been able to use it recently because of a missing (deprecated)
dependency. My current 15.04 installation is fairly new, as I returned
to 14.04.2 for a while, but decided again to use the newest development
version. I have to say that I don't see this bug that much often as I
used to, I only came across it once throughout two weeks of everyday
usage. I only had free software running then, available in the main
repositories, namely Firefox, Nautilus, Terminal, qBittorrent. I started
to close windows in this order: qBittorrent, Nautilus, Firefox. After
closing Firefox, the performance was normal again. Note that I left the
terminal window open.

I am using the recommended proprietary Nvidia drivers, and I am affected
by an another bug (having thick black borders around GUI elements),
which occurs after a sleep/resume cycle. I will do some experiments to
find out whether this bug is also connected to suspending the system.

That's all for now. I would like to offer some of my free time for
further investigation, I will just need some tips on how to proceed.

-- 
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https://bugs.launchpad.net/bugs/1447570

Title:
  Unity suffers severe performance drops occasially

Status in Unity:
  Incomplete
Status in unity package in Ubuntu:
  Incomplete

Bug description:
  Presumably Unity, or in general the user interface of Ubuntu 15.04
  (Vivid) suffers severe performance drops. To be more precise, when my
  system happens to be in this state, every animation, like moving
  windows, opening menus (fading in/out), or opening the dash is very
  choppy (I would guess 5 FPS, but I didn't perform proper
  measurements). I could not find the triggering element, although I
  know that closing some windows will solve the problem, after which I
  can reopen those windows, and have normal frame rates. In Compiz
  Config Settings Manager, I already set the refresh rate to the correct
  value of 60, and disabled refresh rate detection. I believe that from
  the attached data it's clear that I'm using the latest nvidia drivers
  provided by Ubuntu.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: unity 7.3.2+15.04.20150420-0ubuntu1
  ProcVersionSignature: Ubuntu 3.19.0-11.11-generic 3.19.3
  Uname: Linux 3.19.0-11-generic x86_64
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  346.59  Tue Mar 31 14:10:31 PDT 2015
   GCC version:  gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu12)
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CurrentDesktop: Unity
  Date: Thu Apr 23 13:39:27 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  DkmsStatus:
   bbswitch, 0.7, 3.19.0-11-generic, x86_64: installed
   nvidia-346, 346.59, 3.19.0-11-generic, x86_64: installed
   nvidiabl, 0.87, 3.19.0-11-generic, x86_64: installed
   virtualbox, 4.3.26, 3.19.0-11-generic, x86_64: installed
  GraphicsCard:
   NVIDIA Corporation GF108GLM [Quadro 1000M] [10de:0dfa] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:1631]
  InstallationDate: Installed on 2015-04-02 (20 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
  MachineType: Hewlett-Packard HP EliteBook 8560w
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-11-generic root=UUID=3e49aeb5-6b77-43cb-93b1-9176680ee390 ro acpi_backlight=vendor quiet splash
  SourcePackage: unity
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/15/2013
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68SVD Ver. F.42
  dmi.board.name: 1631
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 01.3D
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68SVDVer.F.42:bd07/15/2013:svnHewlett-Packard:pnHPEliteBook8560w:pvrA0001D02:rvnHewlett-Packard:rn1631:rvrKBCVersion01.3D:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook 8560w
  dmi.product.version: A0001D02
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Thu Apr 23 12:24:57 2015
  xserver.configfile: default
  xserver.errors: open /dev/fb0: No such file or directory
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   
  xserver.version: 2:1.17.1-0ubuntu3

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