Struct NodeLatencyStats 

pub struct NodeLatencyStats {
    pub histograms: HashMap<String, LatencyHistogram>,
}

Per-node latency statistics keyed by node identifier string.

Wraps a HashMap of LatencyHistograms so callers can record and query the processing latency of individual graph nodes.

Fields

histograms: HashMap<String, LatencyHistogram>

Maps node identifier to latency histogram for that node.

Implementations

impl NodeLatencyStats

pub fn new() -> Self

Creates an empty NodeLatencyStats.

pub fn record_node(&mut self, node_id: &str, latency_ns: u64)

Records a latency sample for the node identified by node_id.

The histogram is created on the first call for each unique node_id.

pub fn summary(&self, node_id: &str) -> Option<(f64, u64, u64)>

Returns (mean_ns, p50_ns, p99_ns) for node_id, or None if no samples have been recorded for that node.

Trait Implementations

impl Clone for NodeLatencyStats

fn clone(&self) -> NodeLatencyStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NodeLatencyStats

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

Formats the value using the given formatter.

impl Default for NodeLatencyStats

fn default() -> NodeLatencyStats

Returns the “default value” for a type.