Well, it is good to know that others have the same problem as myself, but the comments do not all add any new information in order to help address the issue. The problem CANNOT just be a straight memory leak or CPU usage issue. I am running 16.04.1 on a 64-bit Dell I5555 with Radeon graphics and have had various error messages around this problem (during the boot process). First, after installing the OS, I have had a few normal boots, all being responsive and quick (also the boot process being quick and the shutdown lightning-fast). Then, don't know what triggered it, the CPU and memory usage went up - and not back down. It does not matter what I do, once there is a rogue job in the system, it is persistent. It comes back up during the next (agonizingly slow!) boot as well, before I even log in. So it's got nothing to do with the software that is running at the time a regular user starts to check. I have tried the uninstall work-around mentioned above (evolution, gnome- software), no change. At one point the computer was very unresponsive, sluggish, getting hot, but when I run the system monitor, the compiz memory usage is only 195 MB(!) and CPU usage is entirely normal. 0 when I don't move the cursor, up to 15 or 20% when I hover the cursor above the launch pad. And it goes back to 0 afterwards. But the fan does NOT stop howling. So I think an erroneous entry is kept somewhere (not in the .compiz directory; I've tried that work-around) that makes the system BELIEVE that something is using lots of memory and/or CPU, although that is not necessarily the case at the time. What did help, ONCE, about a week ago, was a complete system crash! After that, everything was back to normal. Astonishingly, there was nothing wrong on the hard disk, nothing needed fixing; lightning-fast boot, ALL ready to go within seconds! Does this trigger somebody's mind? I am only a user, not a developer; and I hope that somebody who is more computer-literate that I can "read the signs" and make sense out of the symptoms I am describing - thank you in advance!
-- 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/1572801 Title: Ubuntu 16.04 Unity desktop uses much more ram than Ubuntu 15.10 Status in linux package in Ubuntu: Incomplete Status in linux source package in Xenial: Confirmed Bug description: Ubuntu 16.04 64bit ISO number 20160420.1 unity version 7.4.0+16.04.20160415-0ubuntu1 Ubuntu 16.04 64bit ram usage has increase dramatically over Ubuntu 15.10 Ubuntu 16.04 ram roughly 1 GB Ubuntu15.10 can be tuned to 420, 450 MB Ubuntu 16.04 with unity uses 1GB whereas Kubuntu 16.04 is using 420MB live usb ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unity 7.4.0+16.04.20160415-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CasperVersion: 1.376 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Thu Apr 21 01:44:22 2016 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu GraphicsCard: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [1043:8534] GsettingsChanges: b'org.compiz.core' b'outputs' b"['1920x1080+0+0']" b'org.compiz.core' b'active-plugins' b"['core', 'composite', 'opengl', 'place', 'regex', 'resize', 'session', 'snap', 'vpswitch', 'wall', 'animation', 'commands', 'compiztoolbox', 'copytex', 'fade', 'grid', 'imgpng', 'mousepoll', 'move', 'scale', 'unitymtgrabhandles', 'workarounds', 'expo', 'ezoom', 'unityshell']" b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" b'org.gnome.desktop.interface' b'scaling-factor' b'uint32 1' LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: ASUS All Series ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash --- cdrom-detect/try-usb=true noprompt SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/03/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2004 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z87-PLUS dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2004:bd06/03/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ87-PLUS:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: All Series dmi.product.version: System Version dmi.sys.vendor: ASUS version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Thu Apr 21 01:37:17 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1572801/+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
