You could go back to preferences and check that the number of threads are still 16. I thought that Gimp polled the system and set up accordingly...but...
I keep a cpu / memory widget in the kicker (using kbuntu here) and see the load jumping about but yes, 2 cores do seem to be favoured but not always the same ones.
I put a widget on the desktop, captured a C2G opp as a video (but can not honestly inflict that on anyone, so screenshots). Obviously processes (ffmpeg) are running in the background, but a good indication of what is going on.
Starts evenly balanced : https://i.imgur.com/IAhM38f.jpg
but by half way favours cpu0 & cpu1 https://i.imgur.com/aPTi0qV.jpg
almost finished, still mostly cpu0 & 1 but a bit of load on 3 & 4 https://i.imgur.com/o3hETk5.jpg
Takes about a minute here for that size image - 16 bit, 3400 x 3400
What does it prove? Not a lot except not to worry about it too much
I keep a cpu / memory widget in the kicker (using kbuntu here) and see the load jumping about but yes, 2 cores do seem to be favoured but not always the same ones.
I put a widget on the desktop, captured a C2G opp as a video (but can not honestly inflict that on anyone, so screenshots). Obviously processes (ffmpeg) are running in the background, but a good indication of what is going on.
Starts evenly balanced : https://i.imgur.com/IAhM38f.jpg
but by half way favours cpu0 & cpu1 https://i.imgur.com/aPTi0qV.jpg
almost finished, still mostly cpu0 & 1 but a bit of load on 3 & 4 https://i.imgur.com/o3hETk5.jpg
Takes about a minute here for that size image - 16 bit, 3400 x 3400
What does it prove? Not a lot except not to worry about it too much