Struct RetrievalMetrics 

pub struct RetrievalMetrics {
    pub retrieval_count: usize,
    pub retrieval_hit: bool,
    pub avg_similarity: f64,
    pub budget_utilization: f64,
    pub tiers: MemoryTierBreakdown,
}

Metrics captured during memory retrieval for observability persistence.

Fields

retrieval_count: usize

Number of memories retrieved across all tiers.

retrieval_hit: bool

Whether any memories were retrieved (retrieval_count > 0).

avg_similarity: f64

Average similarity score across vector-search results (0.0 if none).

budget_utilization: f64

Fraction of total context budget consumed by memory tokens.

tiers: MemoryTierBreakdown

Per-tier breakdown of retrieved memory counts.

Trait Implementations

impl Clone for RetrievalMetrics

fn clone(&self) -> RetrievalMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RetrievalMetrics

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

Formats the value using the given formatter.

impl Default for RetrievalMetrics

fn default() -> RetrievalMetrics

Returns the “default value” for a type.

impl Serialize for RetrievalMetrics

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

where __S: Serializer,

Serialize this value into the given Serde serializer.