10-26-2021, 07:43 AM
Instead of Windows task manager, get a better breakdown of what is happening by using the Gimp Dashboard Windows -> Dockable Dialogues -> Dashboard (bottom of the list)
This example, on its own, just opened, largish-image, 150 MB in memory. Add layers / layer group / layer mask and bottom line is 756 MB A bit different in the dashboard but still an increase. screenshot: https://i.imgur.com/53qjVJ3.jpg
One source of consumption is the undo stack, delete that and recover some memory: https://i.imgur.com/8QZOZeX.jpg
This example, on its own, just opened, largish-image, 150 MB in memory. Add layers / layer group / layer mask and bottom line is 756 MB A bit different in the dashboard but still an increase. screenshot: https://i.imgur.com/53qjVJ3.jpg
One source of consumption is the undo stack, delete that and recover some memory: https://i.imgur.com/8QZOZeX.jpg