Struct BenchmarkReceipt 

pub struct BenchmarkReceipt {
    pub timestamp: DateTime<Utc>,
    pub commit_hash: String,
    pub machine_fingerprint: MachineFingerprint,
    pub results: Vec<BenchmarkResult>,
    pub note: Option<String>,
}

A benchmark receipt captures the results and context of a single benchmark run.

Receipts are keyed to:

• A commit hash (git SHA)
• A machine fingerprint
• A timestamp (UTC)

This enables reproducible diffs between runs across different machines.

Fields

timestamp: DateTime<Utc>

Timestamp of the benchmark run (UTC)

commit_hash: String

Git commit SHA of the code being benchmarked

machine_fingerprint: MachineFingerprint

Machine fingerprint (hostname + username + arch + OS + cpu count + machine-id)

results: Vec<BenchmarkResult>

Benchmark results indexed by name

note: Option<String>

Optional note about the run environment

Implementations

impl BenchmarkReceipt

pub fn new(commit_hash: String, machine_fingerprint: MachineFingerprint) -> Self

Create a new receipt with the current timestamp.

pub fn add_result(&mut self, result: BenchmarkResult)

Add a benchmark result to this receipt.

pub fn receipt_hash(&self) -> String

Compute a short hash of this receipt for quick comparison.

Uses only the commit hash, machine fingerprint, and result names/values. Timestamp is excluded to allow comparing logically equivalent runs.

pub fn set_note(&mut self, note: impl Into<String>)

Set an optional note about this run.

pub fn to_json(&self) -> Result<Vec<u8>, BenchError>

Serialize this receipt to JSON bytes.

pub fn from_json(bytes: &[u8]) -> Result<Self, BenchError>

Deserialize a receipt from JSON bytes.

Trait Implementations

impl Clone for BenchmarkReceipt

fn clone(&self) -> BenchmarkReceipt

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BenchmarkReceipt

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BenchmarkReceipt

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for BenchmarkReceipt

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

where __S: Serializer,

Serialize this value into the given Serde serializer.