Struct SpecStats 

pub struct SpecStats {
    pub accepted: u64,
    pub rejected: u64,
    pub bonus_tokens: u64,
    pub total_elapsed: Duration,
    pub n1_fallbacks: u64,
}

Per-generation acceptance statistics for the async speculative decoder.

Updated by the verification loop as tokens are accepted or rejected.

Fields

accepted: u64

Number of candidate draft tokens that were accepted by the target.

rejected: u64

Number of candidate draft tokens that were rejected by the target.

bonus_tokens: u64

Number of bonus tokens sampled directly from the target (one per full-acceptance batch).

total_elapsed: Duration

Total wall-clock time spent in the async decoder.

n1_fallbacks: u64

Number of times the decoder fell back to N=1 mode (SSM target).

Implementations

impl SpecStats

pub fn acceptance_rate(&self) -> f32

Token-level acceptance rate in [0.0, 1.0].

Returns 0.0 when no tokens have been evaluated.

pub fn total_output_tokens(&self) -> u64

Total tokens produced (accepted + bonus).

Trait Implementations

impl Clone for SpecStats

fn clone(&self) -> SpecStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpecStats

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

Formats the value using the given formatter.

impl Default for SpecStats

fn default() -> SpecStats

Returns the “default value” for a type.