[digikam] [Bug 375035] Out of memory during face tagging

bugzilla_noreply at kde.org bugzilla_noreply at kde.org
Thu Mar 2 19:15:59 GMT 2017


https://bugs.kde.org/show_bug.cgi?id=375035

--- Comment #10 from lesf at gmx.de ---
I use Sqlite database.

I can reproduce the problem.
Steps:
- Created a new user account
- Prepared a data set of ~58000 pictures. Stripped all metadata [exiftool -r
-overwrite_original -P -all= DIR], as they contained face tags and regions
- Started digikam (digikam-5.5.0-01-x86-64.appimage from 27.2.2017, Revision
7e3182fb6562c8bc01d689dcce9b99c7215b2ae9)
- Run face detection with vanilla settings -- around 28000 faces were detected
- In the 'unknown' tag, I selected groups of images (ignoring whether they were
actual faces or faces from different persons) and assigned them to different
'persons'. Current status:
  'Person A' ~ 10.000 tags
  'Person B' ~ 10.000 tags
  'Person C' ~ 4.500 tags
  7 other persons with 20 to 400 tags
- Now, selecting more images and assigning them to a person resulted in a
forced kill by the kernel due to memory exhaustion.

recognition.db is ~219MB

The system has 8GB RAM, and no swap. My normal working set of usually running
programs is ~1 GB RAM.

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