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[Bug 1511727] [NEW] compiz HIGH CPU usage only during AFK

 

Public bug reported:

I got very HIGH CPU usage ONLY when computer going IDLE.
Again, I have NO PROBLEM during work (video playback, moving windows slowly or fast, no lag, everything is perfect),
BUT when I am out of computer: 20 secs after display fades out CPU fan starts and works heavily (my colleague started to complain due to my CPU fan in quiet environment).

Data:
- Fresh install of Ubuntu 15.10 (plus some other non-desktop or gnome related packages)
- All energy consumption related settings are default (I have not changed them till now).
- Laptop: ACER Aspire V3-371
- CPU: Intel Core i5-5257U
- GPU: Intel Iris grapics 6100
- Display: 1920x1080 internal laptop display, no other display ever plugged in.
- 8G RAM
- 120G SSD

First few lines of top immediately after going on from IDLE:
top - 13:38:25 up  5:39,  3 users,  load average: 1,13, 0,90, 0,58
Tasks: 200 total,   1 running, 199 sleeping,   0 stopped,   0 zombie
%Cpu(s):  8,6 us, 17,2 sy,  0,0 ni, 74,0 id,  0,2 wa,  0,0 hi,  0,1 si,  0,0 st
KiB Mem:   8211348 total,  3555940 used,  4655408 free,   103832 buffers
KiB Swap:  7844308 total,        0 used,  7844308 free.  2532732 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND          
 1396 mark      20   0  288468 114380  70560 S 101,1  1,4 117:11.91 compiz           
  880 root      20   0  351812 114572 101256 S   0,7  1,4   3:56.06 Xorg             
 1800 mark      20   0  864108 291328  78396 S   0,7  3,5  10:57.81 firefox          
 1365 mark      20   0   51868   8720   7216 S   0,3  0,1   0:10.89 ibus-daemon      
 5849 root      20   0       0      0      0 S   0,3  0,0   0:01.76 kworker/1:1      
 5914 root      20   0       0      0      0 S   0,3  0,0   0:00.03 kworker/u16:0    
    1 root      20   0   24884   4848   3716 S   0,0  0,1   0:01.46 systemd          

After 20 minutes work, top is:
top - 13:54:31 up  5:56,  3 users,  load average: 0,32, 0,24, 0,32
Tasks: 198 total,   1 running, 197 sleeping,   0 stopped,   0 zombie
%Cpu(s):  3,6 us,  6,2 sy,  0,0 ni, 90,0 id,  0,1 wa,  0,0 hi,  0,0 si,  0,0 st
KiB Mem:   8211348 total,  3536196 used,  4675152 free,   107652 buffers
KiB Swap:  7844308 total,        0 used,  7844308 free.  2496072 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND          
 6728 mark      20   0    7196   2844   2404 R   6,4  0,0   0:00.01 top              
    1 root      20   0   24884   4848   3716 S   0,0  0,1   0:01.46 systemd          
    2 root      20   0       0      0      0 S   0,0  0,0   0:00.00 kthreadd         
    3 root      20   0       0      0      0 S   0,0  0,0   0:00.66 ksoftirqd/0      
    5 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 kworker/0:0H     
    7 root      20   0       0      0      0 S   0,0  0,0   0:06.86 rcu_sched        
    8 root      20   0       0      0      0 S   0,0  0,0   0:00.00 rcu_bh           
    9 root      rt   0       0      0      0 S   0,0  0,0   0:00.02 migration/0      
   10 root      rt   0       0      0      0 S   0,0  0,0   0:00.04 watchdog/0       
   11 root      rt   0       0      0      0 S   0,0  0,0   0:00.04 watchdog/1       
   12 root      rt   0       0      0      0 S   0,0  0,0   0:00.02 migration/1      
   13 root      20   0       0      0      0 S   0,0  0,0   0:00.54 ksoftirqd/1      
   15 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 kworker/1:0H     
   16 root      rt   0       0      0      0 S   0,0  0,0   0:00.04 watchdog/2       

Please have a look at the total compiz time used (today). Over 117 mins
of CPU!

$ apt-cache policy compiz
compiz:
  Telepítve: 1:0.9.12.2+15.10.20151015-0ubuntu1
  Jelölt:    1:0.9.12.2+15.10.20151015-0ubuntu1
  Verziótáblázat:
 *** 1:0.9.12.2+15.10.20151015-0ubuntu1 0
        500 http://hu.archive.ubuntu.com/ubuntu/ wily/main i386 Packages
        100 /var/lib/dpkg/status

I can make any tests if you wish.
Thanks for helping.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: compiz-core 1:0.9.12.2+15.10.20151015-0ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic i686
.tmp.unity.support.test.0:
 
ApportVersion: 2.19.1-0ubuntu4
Architecture: i386
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: Fri Oct 30 13:44:00 2015
DistUpgraded: Fresh install
DistroCodename: wily
DistroVariant: ubuntu
DkmsStatus: virtualbox, 5.0.4, 4.2.0-16-generic, i686: installed
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Intel Corporation Broadwell-U Integrated Graphics [8086:162b] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:0919]
InstallationDate: Installed on 2015-10-26 (4 days ago)
InstallationMedia: Ubuntu  "Wily" - Build i386 LIVE Binary 20151022-23:55
MachineType: Acer Aspire V3-371
ProcEnviron:
 PATH=(custom, user)
 SHELL=/bin/bash
 LANG=hu_HU.UTF-8
 LANGUAGE=hu
 XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=403e935b-5da2-4b34-8dd7-14f1c0cf0846 ro quiet splash vt.handoff=7
SourcePackage: compiz
UdevLog: Error: [Errno 2] Nincs ilyen fájl vagy könyvtár: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/21/2015
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.28
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Aspire V3-371
dmi.board.vendor: Acer
dmi.board.version: V1.28
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.28
dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.28:bd08/21/2015:svnAcer:pnAspireV3-371:pvrV1.28:rvnAcer:rnAspireV3-371:rvrV1.28:cvnAcer:ct10:cvrV1.28:
dmi.product.name: Aspire V3-371
dmi.product.version: V1.28
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1
version.libdrm2: libdrm2 2.4.64-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
xserver.bootTime: Fri Oct 30 07:58:32 2015
xserver.configfile: default
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                                4397 
 vendor                                     AUO
xserver.version: 2:1.17.2-1ubuntu9

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug compiz-0.9 i386 ubuntu wily

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Title:
  compiz HIGH CPU usage only during AFK

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