Huge amount of data in vectors will not be released about bevy HOT 4 OPEN

So in any case, it's not a bevy thing, I'd assume.

from bevy.

Could you provide some additional information regarding the exact context you're using? For example, is this running inside a system?

use bevy::prelude::*;

fn my_function_that_causes_issues() { /* ... */ }

fn my_system() {
    let _ = my_function_that_causes_issues();
}

fn main() {
    App::new()
        .add_systems(Update, my_system)
        .run();
}

At a guess, it sounds like you might be storing highly fragmented data, making it (eventually) impossible to allocate your large structure. This video from fasterthanlime does a pretty good job of going over this particular type of issue.

As to why it's only present when run in a Bevy context: Bevy may be a sufficiently complex system that its allocations are hemming in your available chunks of memory.

from bevy.

It's not running directly in a system, but a system calls the function. Thanks for the link, will investigate this further.

from bevy.

I believe so. I suspect this is a more fundamental issue in your project that only exposes itself when run with Bevy (or a similar project).

from bevy.