Unsharp Mask unbearably slow after upgrade from 2.8.4 to 2.10.8
GIMP Version: 2.10.8
Operating System: Win 10 64bit with i5-7200U, 16GB RAM
Package: https://download.gimp.org/mirror/pub/gimp/v2.10/windows/gimp-2.10.8-setup-2.exe
Issue Description
I have upgraded from 2.8.4 to 2.10.8 and noticed a massive performance drop which makes this version unusable for me. 2.8.4 completed the steps below in about 1-2 minutes, 2.10.8 took 66 minutes.
My workflow was as follows:
- Open one 8 bit TIF 21700 x 10850 px
- Start Filters - Enhance - Sharpen (Unsharp Mask) After 14 Minutes the progress indicator showed the first bit of green After 21 Minutes I had about 25% progress. After roughly 30 Minutes I had about 50% progress. After 66 Minutes the process had finished.
Performance Log
see attached ZIP file. gimp-performance.zip.
Performance Log Description
Started the performance log then immediately selected Filters - Enhance - Sharpen (Unsharp Mask)
Additional Information
nil