Enum Backend 

#[non_exhaustive]
pub enum Backend {
    Cache,
    Mmap,
}

Backend used by the Btf object to store and access the underlying BTF information.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Cache

Parse the BTF data during initialization and then store the result. This provides faster API calls at the cost of a slower initialization and larger memory footprint.

Mmap

Mmap the BTF data without parsing all of it. This provides a smaller memory footprint and faster initialization at the cost of slower API calls.