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ChunkHints

mz_ore::pool

Struct ChunkHints 

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pub struct ChunkHints {
    pub depth: u8,
}
Available on Unix and crate feature pool only.
Expand description

Advisory placement hints for a chunk, supplied at insert and immutable thereafter (merges mint new chunks, so a chunk’s generation never changes). Hints steer policy — eviction order and write-behind candidacy — never correctness: a mislabeled chunk performs worse, while the budget and residency invariants hold regardless.

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§depth: u8

Generational depth of the chunk in its producer’s merge structure, 0 for the youngest generation (and the unannotated default). Deeper chunks are treated as colder: preferred write-behind candidates and preferred eviction victims, cheap to evict once backed.

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impl Clone for ChunkHints

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fn clone(&self) -> ChunkHints

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 Debug for ChunkHints

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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 Default for ChunkHints

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fn default() -> ChunkHints

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

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fn eq(&self, other: &ChunkHints) -> 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 Copy for ChunkHints

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impl Eq for ChunkHints

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impl StructuralPartialEq for ChunkHints

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