Enum Threshold 

pub enum Threshold {
    RegressionPct(f64),
    RegressionAbsoluteNs(u128),
    ThroughputDropPct(f64),
}

A threshold defining how much slower-than-baseline is acceptable.

Variants

RegressionPct(f64)

Fail if the new mean is more than pct percent slower than baseline.

RegressionAbsoluteNs(u128)

Fail if current_mean - baseline_mean exceeds nanos.

ThroughputDropPct(f64)

Fail if throughput dropped more than pct percent below baseline.

Baseline ops/sec is derived as 1.0 / baseline_mean_secs, which assumes the baseline duration is a per-operation duration. Use with per-iter sampling (Benchmark::iter) where mean equals per-op duration. For batched sampling (Benchmark::iter_with_count), prefer a duration-based threshold or pre-compute the baseline manually.

Implementations

impl Threshold

pub fn regression_pct(pct: f64) -> Self

Build a percent-based duration regression threshold.

Example

use dev_bench::Threshold;
let t = Threshold::regression_pct(20.0);
assert!(matches!(t, Threshold::RegressionPct(_)));

pub fn regression_abs_ns(nanos: u128) -> Self

Build an absolute duration regression threshold in nanoseconds.

Example

use dev_bench::Threshold;
let t = Threshold::regression_abs_ns(500);
assert!(matches!(t, Threshold::RegressionAbsoluteNs(_)));

pub fn throughput_drop_pct(pct: f64) -> Self

Build a percent-based throughput drop threshold.

Example

use dev_bench::Threshold;
let t = Threshold::throughput_drop_pct(10.0);
assert!(matches!(t, Threshold::ThroughputDropPct(_)));

Trait Implementations

impl Clone for Threshold

fn clone(&self) -> Threshold

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Threshold

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

Formats the value using the given formatter.

impl Copy for Threshold