Enum ResidualSource 

pub enum ResidualSource {
    Latency,
    Throughput,
    ErrorRate,
    QueueDepth,
    HeartbeatRtt,
    PollDuration,
    MemoryUsage,
    SerdeLatency,
    FlowControlWindow,
    DnsLatency,
    Custom(&'static str),
}

Source type for a residual measurement.

Each variant represents a distinct telemetry channel from which residuals are derived. The observer computes residual signs independently per source, then correlates across sources in the grammar layer.

Variants

Latency

Request/response latency (e.g., p50, p95, p99 in nanoseconds).

Throughput

Operations per second or bytes per second throughput.

ErrorRate

Error rate (errors per total requests in a window).

QueueDepth

Queue depth for bounded channels or task queues.

HeartbeatRtt

Consensus heartbeat round-trip time (e.g., Raft leader→follower).

PollDuration

Async runtime task poll duration.

MemoryUsage

Resident set size or heap allocation rate.

SerdeLatency

Serialization/deserialization throughput or latency.

FlowControlWindow

gRPC/HTTP2 flow control window utilization.

DnsLatency

DNS resolution latency.

Custom(&'static str)

Custom user-defined source with a static label.

Trait Implementations

impl Clone for ResidualSource

fn clone(&self) -> ResidualSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ResidualSource

impl Debug for ResidualSource

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

Formats the value using the given formatter.

impl Eq for ResidualSource

impl Hash for ResidualSource

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ResidualSource

fn eq(&self, other: &ResidualSource) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ResidualSource