Struct Lfu 

pub struct Lfu {
    pub log_factor: u32,
    pub decay_minutes: u32,
}

The two knobs an LFU policy has, which are lfu-log-factor and lfu-decay-time.

They travel together because neither means anything on its own. The factor decides how many accesses it takes to climb and the decay decides how fast the climb is given back, so it is the pair that sets what the counter measures, and passing one without the other is how they drift apart.

Fields

log_factor: u32

How sharply the counter’s growth flattens out. See LFU_LOG_FACTOR.

decay_minutes: u32

Minutes of quiet per step down. See LFU_DECAY_MINUTES.

Implementations

impl Lfu

pub const DEFAULT: Lfu

Redis’s defaults, which are a factor of ten and a decay of one minute.

Trait Implementations

impl Clone for Lfu

fn clone(&self) -> Lfu

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Lfu

impl Debug for Lfu

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

Formats the value using the given formatter.

impl Default for Lfu

fn default() -> Lfu

Returns the “default value” for a type.

impl Eq for Lfu

impl PartialEq for Lfu

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Lfu