Struct LogHistogram

pub struct LogHistogram { /* private fields */ }

Available on tokio_unstable and crate feature rt only.

Log Histogram

This implements an H2 Histogram, a histogram similar to HdrHistogram, but with better performance. It guarantees an error bound of 2^-p.

Unlike a traditional H2 histogram this has two small changes:

The 0th bucket runs for 0..min_value. This allows truncating a large number of buckets that would cover extremely short timescales that customers usually don’t care about.
The final bucket runs all the way to u64::MAX — traditional H2 histograms would truncate or reject these values.

For information about the default configuration, see LogHistogramBuilder.

Implementations

impl LogHistogram

pub fn builder() -> LogHistogramBuilder

Creates a builder for LogHistogram

pub fn max_value(&self) -> u64

The maximum value that can be stored before truncation in this histogram

Trait Implementations

impl Clone for LogHistogram

fn clone(&self) -> LogHistogram

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) ·

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

Performs copy-assignment from source. Read more

impl Copy for LogHistogram

impl Debug for LogHistogram

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

Formats the value using the given formatter. Read more

impl Default for LogHistogram

fn default() -> Self

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

impl Eq for LogHistogram

impl From<LogHistogramBuilder> for LogHistogram

fn from(value: LogHistogramBuilder) -> Self

Converts to this type from the input type.

impl PartialEq for LogHistogram

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

Equality operator ==. Read more

1.0.0 (const: unstable) ·

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more

impl StructuralPartialEq for LogHistogram

Auto Trait Implementations

impl Freeze for LogHistogram

impl RefUnwindSafe for LogHistogram

impl Send for LogHistogram

impl Sync for LogHistogram

impl Unpin for LogHistogram

impl UnsafeUnpin for LogHistogram

impl UnwindSafe for LogHistogram

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, 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

MIT License
Copyright © Tokio Contributors
https://docs.rs/tokio/1.53.1/tokio/runtime/struct.LogHistogram.html

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