Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: nautilus (Ubuntu)
       Status: New => Confirmed

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  high cpu usage when idle

Status in nautilus package in Ubuntu:

Bug description:
  If I leave nautilus open to my home folder or most any folder, it uses
  25% of the cpu according to top. I've not had it open most of the
  time, but the cpu time is at 29:05 with a system up time of 17:30:21.
  That is more than twice the cpu time of Xorg and more than any other
  process in the system. I have deleted all bookmarks, just in case. If
  I navigate to a folder with only a single text document in it, the
  high cpu use stops.

  Surely this must be a bug. What is it doing? If it is scanning
  something, shouldn't the results be cached and the scanning stop after
  a while? Does nautilus try to prefetch all folders recursively or

  Also, all thumbnails in my Pictures folder show a clock or a black
  rectangle. In Ubuntu 14.04, I believe they showed thumbnail images.
  Could it be that it is trying a failing to load thumbnails?

  Ubuntu 15.10 64 bit, fully updated
  Nautilus 1:3.14.2-0ubunutu13

  Running on Dell XPS 17
  Memory: 15.6 GiB
  Processor: Intel® Core™ i7-2670QM CPU @ 2.20GHz × 8 
  Graphics: GeForce GT 550M/PCIe/SSE2 (this is an Intel/Nvidia Hybrid setup 
running Nvidia binary driver 340.96  from nvidia-340-updates )
  Drives: 2 SSDs (512 and 250GiB)

  Fresh install but home partition copied from 14.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: nautilus 1:3.14.2-0ubuntu13
  ProcVersionSignature: Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4
  Uname: Linux 4.2.0-34-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sat Apr  2 17:24:04 2016
  EcryptfsInUse: Yes
  GsettingsChanges: b'org.gnome.nautilus.list-view' b'default-column-order' 
b"['name', 'size', 'type', 'date_modified', 'date_accessed', 'owner', 'group', 
'permissions', 'mime_type', 'where']"
  InstallationDate: Installed on 2016-03-22 (11 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  SourcePackage: nautilus
  UpgradeStatus: No upgrade log present (probably fresh install)

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