[−][src]Struct metrics::data::AtomicWindowedHistogram
An atomic windowed histogram.
This histogram provides a windowed view of values that rolls forward over time, dropping old values as they exceed the window of the histogram. Writes into the histogram are lock-free, as well as snapshots of the histogram.
Methods
impl AtomicWindowedHistogram
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pub fn new(window: Duration, granularity: Duration, clock: Clock) -> Self
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Creates a new AtomicWindowedHistogram
.
Internally, a number of buckets will be created, based on how many times granularity
goes
into window
. As time passes, buckets will be cleared to avoid values older than the
window
duration.
As buckets will hold values represneting a period of time up to granularity
, the
granularity can be lowered or raised to roll values off more precisely, or less precisely,
against the provided clock.
Panics
Panics if granularity
is larger than window
.
pub fn snapshot(&self) -> StreamingIntegers
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Takes a snapshot of the current histogram.
Returns a StreamingIntegers
value, representing all observed values in the
histogram. As writes happen concurrently, along with buckets being cleared, a snapshot is
not guaranteed to have all values present at the time the method was called.
pub fn record(&self, value: u64)
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Records a value to the histogram.
Trait Implementations
Auto Trait Implementations
impl Send for AtomicWindowedHistogram
impl Sync for AtomicWindowedHistogram
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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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>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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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>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Same<T> for T
type Output = T
Should always be Self