Increase image cache max size to 5 GB

[emilk]

EDIT: I went to just 2GB.

IGNORE THIS

This is just enough to fit default colmap images in cache :)

This means that opening colmap and hitting loop will stutter first play-through, then run smooth as butter.

Here's the memory use when looping colmap:

Checklist

• [x] I have read and agree to Contributor Guide and the Code of Conduct
• [x] I've included a screenshot or gif (if applicable)
• [ ] I've added a line to CHANGELOG.md (if this is a big enough change to warrant it)

[Wumpf]

5gb seems risky to me. Especially given that we don't set a limit on vram and this will allocate more textures as well Have a poor idea about what's mainstream hardware though

[emilk]

https://store.steampowered.com/hwsurvey/Steam-Hardware-Software-Survey-Welcome-to-Steam

VRAM:

20% has 2GB or less 😭

Not a perfect overlap between Steam gamers and computer vision researchers though, but… point taken.

[emilk]

I can see how much the fiat demo uses. 2GB should be fairly safe imho

[emilk]

ok, fiat is no problem at all

[emilk]

We need to rethink this and do it properly.

We can have a big RAM-cache of decoded JPEG images, and then a MUCH smaller VRAM cache of uploaded textures.

Issue created here:

• https://github.com/rerun-io/rerun/issues/1462