"allocate managed memory"

I read in the doc "do not allocate managed memory" inside a Job.

So far I've only let unity handle memory so i don't know what's what.

Can you guys give me a few example of allocating managed memory apart from obvious things like

new List<>

or string concats.

For example does

var f=Mathf.Sin(t)

or any float temp variables allocate managed memory?

 

Managed types are pretty much any reference type, which classes are. Reference types have their memory managed by the CLR. Structs like float or a struct you create without reference types contained are unmanaged. If the method does not create or work with a managed type, then that's fine.

C# docs can probably explain things better than I can:

https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/builtin-types/unmanaged-types

https://docs.microsoft.com/en-us/dotnet/standard/managed-code

 

Thanks! All clear