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High RAM Consumption in GIMP
#4
(09-29-2025, 06:00 PM)Dunham Wrote: Hi
Thanks for the reply
I have 16GB of RAM and use Linux Mint. When I open the system without opening any applications, my RAM consumption is 2.5GB. I changed the Fragment Cache Size to 8GB, and when I open GIMP without any images, its consumption remained at 4.9GB, and the total system RAM consumption shown in the Mission Center or System Monitor was 7.3GB. I opened an image manipulation file, and GIMP's consumption rose to 6.7GB. I opened another image manipulation file without closing the previous one, and this time it was 9.4GB, and the system total was 11.5GB.
I think it's possible to work this way.
On Windows, when I had high memory consumption, I used a Microsoft application called PCManager, and it provided a RAM booster. I don't know if something similar exists on Linux.

What says the Gimp dashboard?

Also, using top:

   

  • This also agrees with the Gimp dashboard: (165448-68320)/1024 is the 94.9MB reported by the dashboard.
  • The VIRT column reports nearly 4GB, but the same column reports insane sizes for chromium, so these are not usage of real memory (1TB and even the 32GB would be seriously hammering my 32GB PC).
So, until you show me what the Gimp dashboard or top/htop say, I'll conclude that you are looking at the wrong place.

And yes, loading images takes memory, 4 bytes per pixel in 8-bit, 32 bytes per pixel in high prevision, and this per layer, plus at least one canvas-sized buffer for display, and about as much per undo step. Loading one 32Mpix image from my camera adds 380MB (without even an alpha-channel), so, at roughly 92MB/layer, Gimp keeps 3 additional copies.
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Messages In This Thread
High RAM Consumption in GIMP - by Dunham - 09-28-2025, 11:07 PM
RE: High RAM Consumption in GIMP - by Ofnuts - 09-29-2025, 03:29 PM
RE: High RAM Consumption in GIMP - by Dunham - 09-29-2025, 06:00 PM
RE: High RAM Consumption in GIMP - by Ofnuts - 09-29-2025, 07:55 PM

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