Enum EvictionPolicy 

pub enum EvictionPolicy {
    Lru,
    Lfu,
    Fifo,
    Random,
    TinyLfu,
}

Eviction strategy for a single cache tier.

Variants

Lru

Evict the entry with the oldest last_access timestamp.

Lfu

Evict the entry with the lowest access frequency; tie-break on last_access.

Fifo

Evict the entry that was inserted first (queue order).

Random

Evict a random entry using a deterministic xorshift32 PRNG.

TinyLfu

Approximate LFU with a tiny Count-Min admission filter.

Trait Implementations

impl Clone for EvictionPolicy

fn clone(&self) -> EvictionPolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EvictionPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for EvictionPolicy

impl PartialEq for EvictionPolicy

fn eq(&self, other: &EvictionPolicy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for EvictionPolicy