[Digikam-devel] [digikam] [Bug 346363] New: digiKam uses only ONE out of four CPUs

[Axel Krebs]

https://bugs.kde.org/show_bug.cgi?id=346363

            Bug ID: 346363
           Summary: digiKam uses only ONE out of four CPUs
           Product: digikam
           Version: 4.9.0
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: digikam-devel at kde.org
          Reporter: axel.krebs at t-online.de

If I start servicing my databases, I experience always very slow progress. 
"Servicing" about 900 new pics takes time for hours and hours seemingly not to
end up at alll :-(

In this case, I just seacrh for new pics and refresh previews.

My motherborad runs an powerful quadcore.
When checking put for reasoins, I found, that didiKam just engages 25% of my
CPU(s). 
For this reason, I conclude, that digiKam doe _not_ use all CPUs right now.

This is a severe handycap, as it make digiKam appear slowly.



Reproducible: Always

Steps to Reproduce:
1. Please take care, that digiKam runs all CPU a machine provides and/or
introduce an intelligent CPU management, a user can pre-select about the number
of engaged CPUs.
2.
3.

Actual Results:  
digiKams performance is not satisfying at all: maybe you'll check ourt GIMP
concerning this feature or HUGIN, which applyies graphic-card-capabilities.

Expected Results:  
digiKam should work and run on the level of nowadays programs. 
It seems to be old fashioned to just use one single CPU.

Because of the slowliness, whicgh forces the user to wait terribly long, this
is a failure of major importance!!!

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