http://bugs.kde.org/show_bug.cgi?id=182743 Summary: Bug: "advanced slide show" renders system unresponsive
on large image collections
Product: digikam
Version: 0.10.0-rc1
Platform: unspecified
OS/Version: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
AssignedTo:
[hidden email]
ReportedBy:
[hidden email]
Version: 0.10.0-rc1 (using 4.1.3 (KDE 4.1.3) "release 70.1",
KDE:KDE4:STABLE:Desktop / openSUSE_11.1)
Compiler: gcc
OS: Linux (i686) release 2.6.27.7-9-pae
I preferred "Advanced Slide Show" in previous versions of digikam because it
has nice transition effects in between images. Unfortunately this does not work
any more on albums with 50 or more images. digikam spawns numerous parallel
threads "kio_file", "kio_thumbnail", "dbus-launch", which obviously try to
generate thumbnails of the images in parallel. After a little while, all my 2
GB of memory are exhausted and the system starts paging; which results in no
responsiveness at all on any click, or keyboard entry. The only way to stop the
numerous parallel processes is to power cycle the computer. To me it doesn't
make any sense to start more than four of these parallel threads on a one cpu
system, because the cpu can only work on one thread at a time, the only sense
of these parallel threads is to overlap io-operations with compute operations.
I strongly suggest to limit the number of parallel threads to 4 when running
"Advances Slide Show".
Thanks,
Robert
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