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PipelineCostResult

ftui_runtime::cost_model

Struct PipelineCostResult

pub struct PipelineCostResult {
    pub total_mean_us: f64,
    pub total_var_us2: f64,
    pub utilization: f64,
    pub mean_sojourn_us: f64,
    pub stable: bool,
    pub budget_fraction: f64,
    pub stage_breakdown: Vec<StageBreakdown>,
    pub headroom_us: f64,
}

Expand description

Result of pipeline cost model analysis.

Fields§

§total_mean_us: f64

Total mean service time (µs).

§total_var_us2: f64

Total service time variance (µs²).

§utilization: f64

Server utilization ρ = λ × E[S].

§mean_sojourn_us: f64

Mean sojourn time via Pollaczek-Khinchine (µs).

§stable: bool

Whether the system is stable (ρ < 1).

§budget_fraction: f64

Fraction of frame budget consumed by mean service.

§stage_breakdown: Vec<StageBreakdown>

Per-stage breakdown.

§headroom_us: f64

Headroom: frame_budget - mean_sojourn (µs).

Implementations§

impl PipelineCostResult

pub fn to_jsonl(&self) -> String

Serialize to JSONL for evidence ledger.

Trait Implementations§

impl Clone for PipelineCostResult

fn clone(&self) -> PipelineCostResult

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for PipelineCostResult

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

Formats the value using the given formatter. Read more

impl Display for PipelineCostResult

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl Freeze for PipelineCostResult

impl RefUnwindSafe for PipelineCostResult

impl Send for PipelineCostResult

impl Sync for PipelineCostResult

impl Unpin for PipelineCostResult

impl UnwindSafe for PipelineCostResult

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more