Struct CacheStatsSnapshot 

pub struct CacheStatsSnapshot {
    pub hits: u64,
    pub misses: u64,
    pub evictions: u64,
    pub insertions: u64,
}

A point-in-time snapshot of cache statistics.

Fields

hits: u64

Total cache hits.

misses: u64

Total cache misses.

evictions: u64

Total evictions (LRU or TTL).

insertions: u64

Total insertions.

Implementations

impl CacheStatsSnapshot

pub fn hit_rate(&self) -> f64

Cache hit rate as a value in [0.0, 1.0].

Returns 0.0 when there have been no lookups.

pub fn approx_size(&self) -> u64

Total size tracked by the stats counters (insertions minus evictions).

Note: this is an approximation; for the authoritative entry count use QueryCache::len.

Trait Implementations

impl Clone for CacheStatsSnapshot

fn clone(&self) -> CacheStatsSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheStatsSnapshot

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

Formats the value using the given formatter.