General Performance Issues Viewing Large Pictures

Maik Qualmann metzpinguin at
Mon Jun 26 17:42:37 BST 2023

Is the specification of 64GB for the memory correct?
With this size, we calculate the image cache incorrectly, only a very small 
cache is created, so no larger images are preloaded in the preview. The 
problem will be fixed in digiKam-8.1.0.


Am Montag, 26. Juni 2023, 18:12:19 CEST schrieb Tonio Kroeger:
> Hi all,
> I am an enthusiastic digikam user for nearly 20 years now!
> I am running 8.0.0. on an I7 under Linux with plenty of RAM (
> -mini-pc-nuc11tnkv7/specifications.html). My picture collection became huge,
> about 8TB (also many RAW files, roughly 300.000 Jpegs), and I still use
> SQLLite for the database.
> In general everything works fine but when I switch to another picture this
> takes up to 3 seconds. This is very anyoing especially when sorting out
> pictures. For the latter purpose I store incoming pictues on the internal
> SSD but this leads exactly to the 3 seconds from above, external USB-drive
> is worse but not as worse as I would expect. I tried to precache all
> pictures into RAM, that did not significantly help. When I lower the
> maximal CPU frequency this seems to scale linearly with the time to show a
> new picture.
> Over the years my pictures became larger and larger. Today I have Jpegs
> around 20MB. (5MB Pics from my IPhone show up very fast.)
> I wonder whether someone can give a hint where I might have an issue with
> my system. Is SQLLite a problem in my setting? Or are the 3 seconds just my
> fate because of the many megapixel...
> Best wishes & tnx
> Tonio

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