This is really a GIMP bug because of too big memory usage when working
with 3.9 MiB jpeg file.
I've tested that jpeg file with other image viewing/edidint applications and
didn't noticed such big memory usage, like with GIMP.
Computer has 3Gb of RAM and no swap. I simply open image with 3 different
applications and look how many they use memory with htop. Then I try to zoom in
several times, then zoom out and finally - rotate image to the right (90
angle). Results of my tests:
Eog 2.30.0-0ubuntu1 :
400Mb (13,5% of total memory) after opening, zoom doesn't increase memory
usage, ~800Mb during rotate;
Shotwell viewer 0.7.2-0ubuntu2 :
~40Mb (only ~1% of total memory) after opening, 1Gb (33%) after zoom, rotating
doesn't increase memory usage (if I rotate before zoom, then memory usage
remains ~40Mb !!!);
GIMP 2.6.8-2ubuntu1.1 :
1,3 Gb (42% of total memory) after opening, zoom doesn't increase memory usage,
increased memory usage during rotate and kernel killed GIMP...
So, vietnam isn't right - GIMP uses much more memory for the same image
comparing to other programs. Maybe we need to test with latest GIMP
version 2.6.11 and report a bug to upstream if memory usage is too big?
vietnam wrote on 2010-01-27:
> Gimp, like other programs, load the file like a BMP and need to load every
> single pixels. Gimp need to load 14000 X 8000 pixels... that about an image
> with a size of 924.4 MB.
** Also affects: baltix
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/408317
Title:
Gimp freezes and makes whole system lagging when opening large file
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