Possible Memory Leak. Excessive memory usage after changing settings one too many times.

[djmrFunnyMan]

What happened?

I was messing with shader settings to look into a shader issue. I noticed that after messing with the settings for a while memory usage will constantly climb higher until it hits the allocation limit and constatnly triggers garbage collector resulting in heavy lag and the game being unplayable.
https://github.com/user-attachments/assets/2118e831-1296-4ce5-b80b-8e011b786fd0

Off the top of my head I think it might be related to Iris caching past shader settings so they compile faster if you select them again. Are those stored in the RAM? I feel like only the second most recent settings should be kept in RAM and the rest temporarily saved on the hard drive.

Screenshots

Freshly loaded into the world:

After messing with settings for a while:

Log output

latest.log
crash-2024-12-08_16.41.18-client.txt

Minecraft Version

1.21.4

Iris Version

iris-fabric-1.8.3+mc1.21.4.jar

Operating System

Windows 11

What is your GPU?

GTX 1060 6GB

Additional context

No response

[djmrFunnyMan]

Here's a spark profile

Before: https://spark.lucko.me/mUrVkkg3YO

After: https://spark.lucko.me/WocejZ3TdH

[djmrFunnyMan]

Eventually you'll be simply unable to load the shader at all due to java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space