Struct QueryCacheStats 

pub struct QueryCacheStats {
    pub total_entries: usize,
    pub hits: u64,
    pub misses: u64,
    pub evictions: u64,
    pub expirations: u64,
}

Accumulated statistics for a SemanticQueryCache instance.

Exported as QueryCacheStats to avoid a name collision with the CacheStats type that already exists in router.

Fields

total_entries: usize

Number of entries currently stored in the cache.

hits: u64

Total number of successful cache lookups.

misses: u64

Total number of unsuccessful cache lookups (including expired entries).

evictions: u64

Total number of LRU evictions (capacity overflow).

expirations: u64

Total number of TTL expirations detected during lookups or explicit calls to SemanticQueryCache::evict_expired.

Implementations

impl QueryCacheStats

pub fn hit_rate(&self) -> f64

Returns the fraction of lookups that resulted in a cache hit.

Returns 0.0 when no lookups have been performed yet.

Trait Implementations

impl Clone for QueryCacheStats

fn clone(&self) -> QueryCacheStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryCacheStats

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

Formats the value using the given formatter.

impl Default for QueryCacheStats

fn default() -> QueryCacheStats

Returns the “default value” for a type.