[okular] [Bug 394834] New: Okular not release memory (ram) taken by closed documents

[CnZhx]

https://bugs.kde.org/show_bug.cgi?id=394834

            Bug ID: 394834
           Summary: Okular not release memory (ram) taken by closed
                    documents
           Product: okular
           Version: 1.4.1
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: zhx at cnzhx.net
  Target Milestone: ---

Hi there, I report this but I am not really sure about this problem. I used
Okular a lot for paper reading. The settings are almost the same as default,
especially the Performance is set to Normal.

I used to open a lot of papers at the same time and switching between them.
Okular responses quickly. After a while, Okular takes around 5 to 6 GB of ram,
which is not a problem for me as long as the memory is not exhausted. After I
close some PDFs and open some others, the taken RAM keeps increasing but seems
never being released after closure of some documents. That is fine, I think.
However, when there is little memory left for my system to use, like only 0.5
GB left, and I need to open another programme, that causes problem and the
system starts to use swap space. Okular still does not release the memory it
takes. I think this situation need improvement so that Okular could somewhat
release some memory space when some documents have been closed for a long time.

Thank you.

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