Struct CacheStats 

pub struct CacheStats {
    pub hits: AtomicU64,
    pub misses: AtomicU64,
    pub evictions: AtomicU64,
    pub puts: AtomicU64,
}

Live, lock-free counters for a CachedBlockStore.

Each field is an AtomicU64 so that observers can read a consistent snapshot without acquiring any locks. Ordering is Relaxed throughout because counter values are only informational.

Fields

hits: AtomicU64

Number of get() calls satisfied from L1.

misses: AtomicU64

Number of get() calls that missed L1 (including blocks not in L2).

evictions: AtomicU64

Approximate number of LRU evictions from L1.

puts: AtomicU64

Number of put() calls (all, including oversized blocks).

Implementations

impl CacheStats

pub fn hit_rate(&self) -> f64

Instantaneous hit-rate in [0.0, 1.0].

Returns 0.0 when no get() calls have been made yet.

pub fn snapshot(&self) -> CacheStatsSnapshot

Take a point-in-time snapshot of all counters.

Trait Implementations

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.

impl Serialize for CacheStats

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.