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Nautilus's thumbnail cache in ~/.thumbnails has grown to several hundred megabytes.

Do I need to be concerned about unrestricted growth of this in the long term, or is its size automatically managed somehow?

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If you want more space delete it, if you want more speed dont delete it :) –  Tachyons Mar 20 '12 at 13:56
    
@tachyons When? –  ændrük Mar 20 '12 at 14:00
    
While using nautilus –  Tachyons Mar 20 '12 at 14:03
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2 Answers 2

up vote 13 down vote accepted
+50

Thumbnail cache is limited to 512MB, so several hundred megabytes sounds logical. It also shouldn't keep files older then 180 days.

If you want to change it, try gconf-editor, /desktop/gnome/thumbnail_cache.

Image showing maximum_size and maximum_age options for thumbnail_cache

Exactly the same solution is aplicable to 12.04. You may need to install gconf-editor, other then that, nothing has changed.

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Thanks .can i manually change 180 days to 30 day? –  Tachyons Mar 20 '12 at 14:13
    
See the edit above. :~) –  mikewhatever Mar 20 '12 at 15:10
    
@mikewhatever can you add the info I have about how "it will not cache files above a certain size limit"? If you do then I can delete my answer, which has no up/down votes and is thus useless. –  RolandiXor Sep 16 '12 at 22:58
    
It has one now. :~) I think your answer should stay, as it also provides a good alternative of using Ubuntu Tweak. A lot of people will have it installed before they even hear about gconf-editor. –  mikewhatever Sep 16 '12 at 23:02
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It's size is automatically managed, because it has a built in limit of 512MB by default, and deletes thumbnails older than 180days. It will not cache files above a certain size limit either:

enter image description here

If you want to manage its settings, you can use Ubuntu-Tweak (See how to install it here: How do I install Ubuntu-Tweak?):
enter image description here

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