Sudden surge in memory usage when right clicking big jpg file

[nawan95]

What Happened?

When I right-click on a very large JPG file, the file apps suddenly use a lot of memory. Right-clicking on these files is also very slow. In some cases, this can trigger kswapd to invoke oom-killer, especially on a system with limited memory, or worse, thrashing and livelock.

Steps to Reproduce

1. Download file here: https://commons.wikimedia.org/wiki/File:Menger_4D_OpenCL_23448154_32K.jpg
2. Open download folder
3. Find the file and right click it
4. Check Monitor or htop

Expected Behavior

Right-clicking on a big file is faster and doesn't cause a sudden surge in memory usage.

OS Version

8.x (Circe)

OS Architecture

amd64 (on most hardwares)

Session Type

Secure Session (Wayland, This is the default)

Software Version

Latest release (I have run all updates)

Log Output

Hardware Info

CPU: Intel Celeron N4020 @ 1.10 GHz
Graphic: UHD Graphics 600
Memory: 4 GB

[jeremypw]

Thanks for reporting this. Just selecting the full resolution file (alone) results in memory consumption of 8x its actual size. Presumably this is related to the overlay infobar which has to determine the file size and resolution but why it consumes so much space is unknown. Investigating.

[jeremypw]

Closing Files recovers the memory.