Struct StatsCollector 

pub struct StatsCollector { /* private fields */ }

Lock-free accumulator of query and insert statistics.

All counters use Relaxed ordering for throughput; the last_query_ns field uses Release/Acquire so that a reader who observes an updated timestamp also sees the corresponding counter increments.

Implementations

impl StatsCollector

pub fn new() -> Self

Create a new StatsCollector with all counters at zero.

pub fn record_insert(&self)

Record a completed insert.

pub fn record_query(&self, latency_ns: u64)

Record a completed query with the given latency.

pub fn query_count(&self) -> u64

Total number of queries recorded.

pub fn insert_count(&self) -> u64

Total number of inserts recorded.

pub fn mean_query_ns(&self) -> u64

Mean query latency in nanoseconds, or 0 if no queries have been recorded.

pub fn last_query_ns(&self) -> Option<u64>

Nanoseconds since the epoch at which the last query was recorded, or None if no queries have been recorded yet.

Trait Implementations

impl Default for StatsCollector

fn default() -> Self

Returns the “default value” for a type.