Struct AccessStats

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pub struct AccessStats {
    pub access_count: u64,
    pub last_access: Instant,
    pub first_access: Instant,
    pub access_times: VecDeque<Instant>,
    pub current_tier: usize,
    pub size_bytes: usize,
}

Expand description

Access statistics for a cache item

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§access_count: u64

Total number of accesses

§last_access: Instant

Last access time

§first_access: Instant

First access time

§access_times: VecDeque<Instant>

Access timestamps (for frequency analysis)

§current_tier: usize

Current tier level

§size_bytes: usize

Item size in bytes

Implementations§

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impl AccessStats

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pub fn new(tier: usize, size: usize) -> Self

Create new access stats

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pub fn record_access(&mut self)

Record an access

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pub fn frequency(&self) -> f64

Calculate access frequency (accesses per second)

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pub fn recency_score(&self, max_age: Duration) -> f64

Calculate recency score (0.0 = old, 1.0 = very recent)

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pub fn heat_score(&self, max_age: Duration) -> f64

Calculate heat score (combination of frequency and recency)

Trait Implementations§

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impl Clone for AccessStats

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fn clone(&self) -> AccessStats

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 AccessStats

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for AccessStats

Blanket Implementations§

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

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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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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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