Struct AccessStats 

#[non_exhaustive]
pub struct AccessStats {
    pub frequency: u32,
    pub recency_rank: usize,
    pub size: u64,
}

Access statistics used by TierPolicy implementations.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

frequency: u32

Number of recorded accesses.

recency_rank: usize

Position in the recency queue (0 = most recent).

size: u64

Size of the entry in bytes.