High GPU memory usage

[HON95]

According to nvidia-smi, iwgtk is currently using 460MB of my GPU memory. That's a lot, and I don't see why this should be using GPU memory at all.

It seems like every time I open the window from tray and then close it again it consumes another ~30MB, and it just keeps climbing when I open and close it repeatedly (e.g. by spam-clicking the tray icon). Clearly a memory leak somewhere.

Then again, why is this using GPU memory in the first place? Is that some kind of requirement for GTK apps or something?

Using:

• Arch Linux (latest as of yesterday)
• i3 4.21.1
• Xorg (xorg-server) 21.1.4-1
• iwgtk 0.8

[HON95]

Opening it enough times to eat all of my 10GiB of GPU memory makes the window visually corrupted, so clearly the GUI is using some kind of video acceleration.

[J-Lentz]

GTK4 does use a lot of GPU memory, some of which is due to caching and some of which may be an artifact of how GPU memory usage is reported. See: https://www.reddit.com/r/GTK/comments/vv55p4/gtk4_memory_usage_unexpectedly_high/

However, the ~30 Mb memory leak is most likely due to iwgtk failing to free something, rather than a bug in the toolkit.

[w-jablonski]

Has this memory leak been fixed or looked into? Thanks for your time