Struct SpeculationObservation 

pub struct SpeculationObservation {
    pub baseline_dispatches: u32,
    pub baseline_mean_ns: u64,
    pub speculative_dispatches: u32,
    pub speculative_mean_ns: u64,
    pub side_compile_cost_ns: u64,
}

Per-shape observation feeding the speculation decision.

Fields

baseline_dispatches: u32

Number of times the baseline variant was dispatched. Used to gate how confident we are in baseline_mean_ns.

baseline_mean_ns: u64

Mean wall-clock dispatch latency of the baseline variant in nanoseconds.

speculative_dispatches: u32

Number of times the speculative variant was dispatched.

speculative_mean_ns: u64

Mean wall-clock dispatch latency of the speculative variant.

side_compile_cost_ns: u64

Side-compile cost (one-time amortized over future dispatches). Treated as overhead the speculative variant must pay back.

Trait Implementations

impl Clone for SpeculationObservation

fn clone(&self) -> SpeculationObservation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SpeculationObservation

impl Debug for SpeculationObservation

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

Formats the value using the given formatter.