[Kde-imaging] [Bug 182743] Bug: "advanced slide show" renders system unresponsive on large image collections

[Robert Zeller]

https://bugs.kde.org/show_bug.cgi?id=182743


Robert Zeller <robert.zeller at robert-zeller.org> changed:

           What    |Removed                     |Added
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                 CC|                            |andi.clemens at gmx.net,
                   |                            |robert.zeller at robert-zeller
                   |                            |.org




--- Comment #6 from Robert Zeller <robert zeller robert-zeller org>  2009-06-07 13:22:24 ---
Andi,

thanks for confirming the bug. In my opinion the slowness of the system is
caused by the fact that a huge number of parallel processes - probably for each
slide three processes : "kio_file", "kio_thumbnail", "dbus-launch" - are being
spawned. These parallel processes after a short while exhaust all the memory
and the system starts paging like crazy. It should be relatively easy to limit
the number of slides being processed in parallel to a reasonable number - say 4
- and continue processing in series on chunks of 4 slides. In this case it
would still take some time to prepare the slide show, but the system would stay
responsive, and after a little while the advanced slide show would start. 

Robert

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