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PowCapabilityScorer

Struct PowCapabilityScorer 

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pub struct PowCapabilityScorer { /* private fields */ }
Expand description

Configurable deterministic scorer for a PowCapabilityProfile.

The scorer is Copy so it can live in a static configuration struct without a wrapper. The default configuration (PowCapabilityScorer::default) is the recommended starting point — every field is documented and has a public constant.

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impl PowCapabilityScorer

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pub fn new() -> Self

Build a scorer with the default configuration.

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pub const fn with_weights(self, weights: ProfileWeights) -> Self

Replace the scoring weights.

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pub const fn with_min_observations(self, min_observations: u32) -> Self

Replace the minimum-observation floor. A value of 0 effectively disables sparse-telemetry fallback (the scorer will return a score for any non-empty profile). Negative values are clamped to 0 so the public surface stays simple.

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pub const fn with_latency_budget_ms(self, latency_budget_ms: u64) -> Self

Replace the latency budget (milliseconds) used to score the p95 latency term. A value of 0 falls back to the documented default so the latency term never silently becomes “always penalised”.

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pub fn with_retry_budget(self, retry_budget: f64) -> Self

Replace the retry budget used to score the average retries term. A non-positive value falls back to the documented default.

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pub const fn weights(&self) -> ProfileWeights

Current weights.

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pub const fn min_observations(&self) -> u32

Current minimum-observation floor.

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pub const fn latency_budget_ms(&self) -> u64

Current latency budget in milliseconds.

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pub const fn retry_budget(&self) -> f64

Current retry budget.

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pub fn score(&self, profile: &PowCapabilityProfile) -> f64

Score a PowCapabilityProfile.

Returns SPARSE_FALLBACK_SCORE when the profile has fewer attempts than PowCapabilityScorer::min_observations (the documented “no signal” default). Otherwise the four scoring terms are blended through the configured weights and re-normalised so the result is in [0.0, 1.0] even when the weights do not sum to 1.0.

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pub fn band(&self, profile: &PowCapabilityProfile) -> PowCapabilityBand

Score a profile and return a coarse PowCapabilityBand.

The band thresholds are fixed and documented (strong0.75, degraded0.40, weak otherwise). Profiles that do not meet the minimum-observation floor return PowCapabilityBand::Unknown.

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impl Clone for PowCapabilityScorer

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fn clone(&self) -> PowCapabilityScorer

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PowCapabilityScorer

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

Formats the value using the given formatter. Read more
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impl Default for PowCapabilityScorer

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for PowCapabilityScorer

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl PartialEq for PowCapabilityScorer

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fn eq(&self, other: &PowCapabilityScorer) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for PowCapabilityScorer

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

Serialize this value into the given Serde serializer. Read more
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impl Copy for PowCapabilityScorer

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impl StructuralPartialEq for PowCapabilityScorer

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fn borrow_mut(&mut self) -> &mut T

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impl<T> CloneToUninit for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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