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PaneMemoryStrategyFootprint

Struct PaneMemoryStrategyFootprint 

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pub struct PaneMemoryStrategyFootprint {
    pub strategy: PaneMemoryStrategy,
    pub retained_unit_count: usize,
    pub retained_node_count: usize,
    pub node_struct_bytes: usize,
    pub leaf_payload_bytes: usize,
    pub extension_payload_bytes: usize,
    pub operation_payload_bytes: usize,
    pub state_hash_overhead_bytes: usize,
    pub container_and_metadata_bytes: usize,
    pub total_retained_bytes: usize,
    pub dominant_driver: PaneMemoryDriver,
}
Expand description

Retained-memory footprint of one strategy, decomposed by retained-state class.

total_retained_bytes is authoritative; the per-class fields sum to it exactly (the last class, container_and_metadata_bytes, absorbs the remainder so the decomposition is always faithful).

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§strategy: PaneMemoryStrategy

Which strategy this footprint describes.

§retained_unit_count: usize

Count of retained heavy units: live tree (1) for baseline, retained snapshots (baseline + checkpoints) for checkpointed, versions for persistent.

§retained_node_count: usize

Total retained tree nodes (logical for checkpointed snapshots; physically distinct for the persistent store).

§node_struct_bytes: usize

Tree node struct bytes.

§leaf_payload_bytes: usize

Leaf surface-key payload bytes.

§extension_payload_bytes: usize

Node + leaf extension-map payload bytes.

§operation_payload_bytes: usize

Operation-log entry struct + operation heap payload bytes (0 unless checkpointed).

§state_hash_overhead_bytes: usize

Per-entry before/after state-hash bytes (0 unless checkpointed).

§container_and_metadata_bytes: usize

Container struct plus version/checkpoint metadata bytes (remainder).

§total_retained_bytes: usize

Authoritative total retained bytes.

§dominant_driver: PaneMemoryDriver

The single largest retained-state class.

Trait Implementations§

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impl Clone for PaneMemoryStrategyFootprint

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fn clone(&self) -> PaneMemoryStrategyFootprint

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for PaneMemoryStrategyFootprint

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impl Debug for PaneMemoryStrategyFootprint

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

Formats the value using the given formatter. Read more
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impl PartialEq for PaneMemoryStrategyFootprint

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for PaneMemoryStrategyFootprint

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for PaneMemoryStrategyFootprint

Auto Trait 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<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> 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<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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.