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ByteLruCache

Struct ByteLruCache 

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pub struct ByteLruCache<K: Eq + Hash + Clone, V> { /* private fields */ }
Expand description

Byte-limited LRU cache with an optional entry cap.

Unlike an entry-count-limited LRU, this cache tracks the resident byte cost of each value (via ResidentBytes) and evicts the least-recently-used entries until the total resident bytes fit under max_bytes. This is the correct policy for biobank-scale payloads where a single cache entry (e.g. an n*K distance matrix) can itself be multiple gigabytes and an entry-count cap would silently blow the memory budget. Small entry caps are still useful for payloads with known shape, such as owned PC data matrices shared across model blocks.

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impl<K: Eq + Hash + Clone, V: Clone + ResidentBytes> ByteLruCache<K, V>

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pub fn new(max_bytes: usize) -> Self

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pub fn with_max_entries(max_bytes: usize, max_entries: usize) -> Self

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pub fn get(&self, key: &K) -> Option<V>

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pub fn insert(&self, key: K, value: V)

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pub fn resident_bytes(&self) -> usize

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pub const fn max_bytes(&self) -> usize

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pub fn len(&self) -> usize

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pub fn clear(&self)

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impl<K: Eq + Hash + Clone, V: Clone + ResidentBytes> Debug for ByteLruCache<K, V>

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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<K, V> !Freeze for ByteLruCache<K, V>

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impl<K, V> RefUnwindSafe for ByteLruCache<K, V>

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impl<K, V> Send for ByteLruCache<K, V>
where K: Send, V: Send,

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impl<K, V> Sync for ByteLruCache<K, V>
where K: Send, V: Send,

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impl<K, V> Unpin for ByteLruCache<K, V>
where K: Unpin, V: Unpin,

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impl<K, V> UnsafeUnpin for ByteLruCache<K, V>

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impl<K, V> UnwindSafe for ByteLruCache<K, V>

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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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> ByRef<T> for T

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fn by_ref(&self) -> &T

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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

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fn rand<T>(&self, rng: &mut (impl Rng + ?Sized)) -> T
where Self: Distribution<T>,

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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> Imply<T> for U
where T: ?Sized, U: ?Sized,

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impl<T, U> Into<U> 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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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V