Bug 454766

Summary:	Importing an album uses only a single thread
Product:	[Applications] digikam	Reporter:	Roland Illig <roland.illig>
Component:	Import-Albums	Assignee:	Digikam Developers <digikam-bugs-null>
Status:	RESOLVED INTENTIONAL
Severity:	normal	CC:	metzpinguin
Priority:	NOR
Version First Reported In:	7.6.0
Target Milestone:	---
Platform:	Other
OS:	Other
Latest Commit:		Version Fixed/Implemented In:	7.7.0
Sentry Crash Report:

Description Roland Illig 2022-06-02 18:55:36 UTC

SUMMARY
I have a photo collection of 100_000 photos that I want to import.
Digikam takes about 1 week for that job. During that time, it uses only a single thread, even though my computer has 8 cores.

STEPS TO REPRODUCE
1. Import a folder containing 100_000 photos.
2. Wait 2 days, then look at the progress.

OBSERVED RESULT
Digikam is still importing the photos.
There is no useful progress bar.
During the import, Digikam crashes whenever I click around in the timeline.
After a crash, Digikam does not offer to report the crash.

EXPECTED RESULT
Digikam can import a reasonably large photo collection in a single day.
During the import, I can already work on the imported photos, for example, search for duplicates.
Importing the images happens in a background thread, it does not affect the UI.
Digikam does not end up as "not responding" even for a folder containing 100_000 images.

SOFTWARE/OS VERSIONS
Windows: 10

Comment 1 Maik Qualmann 2022-06-02 19:57:22 UTC

If you start with digiKam, you don't import images via the import tool. The import tool is for importing images from camera, memory card, USB. You simply add a collection to your existing image directory.

Maik

Comment 2 Maik Qualmann 2022-06-02 20:06:21 UTC

And since, depending on the device drivers used, multiple threads are not possible, I'll close here.

Maik