Struct historian::Histo

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pub struct Histo { /* private fields */ }

Expand description

A histogram collector that uses zero-configuration logarithmic buckets.

Implementations

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impl Histo

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pub fn measure<T: Into<f64>>(&self, value: T) -> usize

Record a value.

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pub fn percentile(&self, p: f64) -> f64

Retrieve a percentile [0-100]. Returns NAN if no metrics have been collected yet.

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pub fn print_percentiles(&self)

Dump out some common percentiles.

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pub fn sum(&self) -> usize

Return the sum of all observations in this histogram.

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pub fn count(&self) -> usize

Return the count of observations in this histogram.

Trait Implementations

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impl Debug for Histo

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

Formats the value using the given formatter. Read more

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impl Default for Histo

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fn default() -> Histo

Returns the “default value” for a type. Read more

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impl Send for Histo

Auto Trait Implementations

impl RefUnwindSafe for Histo

impl Sync for Histo

impl Unpin for Histo

impl UnwindSafe for Histo

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

Struct historian::Histo

Implementations

impl Histo

pub fn measure<T: Into<f64>>(&self, value: T) -> usize

pub fn percentile(&self, p: f64) -> f64

pub fn print_percentiles(&self)

pub fn sum(&self) -> usize

pub fn count(&self) -> usize

Trait Implementations

impl Debug for Histo

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

impl Default for Histo

fn default() -> Histo

impl Send for Histo

Auto Trait Implementations

impl RefUnwindSafe for Histo

impl Sync for Histo

impl Unpin for Histo

impl UnwindSafe for Histo

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

Struct historian::Histo

Implementations

impl Histo

pub fn measure<T: Into<f64>>(&self, value: T) -> usize

pub fn percentile(&self, p: f64) -> f64

pub fn print_percentiles(&self)

pub fn sum(&self) -> usize

pub fn count(&self) -> usize

Trait Implementations

impl Debug for Histo

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

impl Default for Histo

fn default() -> Histo

impl Send for Histo

Auto Trait Implementations

impl RefUnwindSafe for Histo

impl Sync for Histo

impl Unpin for Histo

impl UnwindSafe for Histo

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

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

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

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

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

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

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