[Okular-devel] [Bug 213618] okular super slow with pdf presentations on kubuntu-netbook

[Ismael Barros]

https://bugs.kde.org/show_bug.cgi?id=213618


Ismael Barros <razielmine at gmail.com> changed:

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                 CC|                            |razielmine at gmail.com




--- Comment #20 from Ismael Barros <razielmine gmail com>  2010-01-17 23:08:06 ---
I stumbled with this problem with some PDFs in a rather powerful machine (Core2
Duo 1.80Ghz, 2GB ram)

Rendering slides in some presentations takes around 4 seconds, and okular CPU
usage is a consistent 100% in one of the cores (I use the "aggressive" memory
usage stup).

Rendering the same slides in those presentations converted from pdf to dvju
with djvudigital (with no cmd parameters) is almost instantaneous, so it may be
a poppler bug. Installed xpdf, and it has the same problem. CPU usage also gets
to 100% in one core, only while rendering each slide (it doesn't do any
preload).

Also, in these cases, the original PDF takes 2.4MB, but he djvu version takes
10.0MB; maybe the PDF is using some sort of CPU intensive compression method?

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