Struct RunMetadata 

pub struct RunMetadata {
    pub total_elapsed_ms: u128,
    pub ttft_ms: Option<u128>,
    pub total_input_tokens: u64,
    pub total_output_tokens: u64,
    pub total_tokens: u64,
    pub total_reasoning_tokens: Option<u64>,
    pub tokens_per_second: f64,
    pub step_details: Vec<StepTiming>,
    pub trace_id: Option<String>,
}

Performance and observability metadata for a workflow run.

Fields

total_elapsed_ms: u128

Total wall-clock time for the workflow.

ttft_ms: Option<u128>

Time to first LLM token across all nodes.

total_input_tokens: u64

Sum of input tokens across all LLM calls.

total_output_tokens: u64

Sum of output tokens across all LLM calls.

total_tokens: u64

Sum of all tokens across all LLM calls.

total_reasoning_tokens: Option<u64>

Sum of reasoning tokens (if applicable).

tokens_per_second: f64

Output tokens per second across the workflow.

step_details: Vec<StepTiming>

Per-step timing details.

trace_id: Option<String>

Trace ID if telemetry was enabled.

Trait Implementations

impl Clone for RunMetadata

fn clone(&self) -> RunMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RunMetadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RunMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for RunMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.