Struct CacheStats 

pub struct CacheStats {
    pub hits: u64,
    pub misses: u64,
    pub entries: usize,
    pub max_entries: usize,
    pub evictions_lru: u64,
    pub evictions_reader: u64,
    pub peak_entries: usize,
    pub active_readers: usize,
    pub memory_bytes_estimate: usize,
}

Cache statistics for monitoring.

Fields

hits: u64

Number of cache hits.

misses: u64

Number of cache misses.

entries: usize

Current number of cached entries.

max_entries: usize

Maximum number of entries allowed.

evictions_lru: u64

Number of entries evicted due to LRU policy.

evictions_reader: u64

Number of entries evicted because all readers passed them.

peak_entries: usize

Peak number of entries ever held (high watermark).

active_readers: usize

Number of currently active readers.

memory_bytes_estimate: usize

Estimated memory usage in bytes.

Implementations

impl CacheStats

pub fn hit_ratio(&self) -> f64

Calculate the hit ratio (hits / total accesses).

pub fn utilization(&self) -> f64

Calculate cache utilization (entries / max_entries).

pub fn total_evictions(&self) -> u64

Total evictions (LRU + reader-based).

pub fn format_summary(&self) -> String

Format statistics as a human-readable string.

Trait Implementations

impl Clone for CacheStats

fn clone(&self) -> CacheStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheStats

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

Formats the value using the given formatter.

impl Default for CacheStats

fn default() -> CacheStats

Returns the “default value” for a type.