Public bug reported:

Binary package hint: nautilus

When I open a folder with several image or video files, Nautilus
progresses through the files to generate thumbnails. In Gutsy Gibbon,
when one returns to the same folder, Nautilus loads the cached
thumbnails which appear instantly without having to re-process the
files.

Having upgraded to 8.04 Hardy Heron, the process is the same the first
time I open a folder. However, when I open the same folder again later,
something different happens:

1) Nautilus opens the folder and loads the cached thumbnails (i.e. they appear 
instantly, as they should)
2) Nautilus then processes the files, even though it has already loaded 
thumbnails; this is known because CPU usage spikes and memory usage tracks in 
the exact same way as the first time the thumbnails are generated.

Attached is a screenshot showing the near 100% CPU usage and the memory
increase-release cycle upon opening a folder for a second (or third, or
fourth, etc...) time. Note the five memory spikes: three large spikes
and two smaller, shorter ones. In the folder there are a total of five
videos: three that are 350MB, and two that are 175MB.

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

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Nautilus repeatedly generates thumbnails
https://bugs.launchpad.net/bugs/221577
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