devela::_dep::rkyv::ser::allocator

Struct AllocationStats

pub struct AllocationStats {
    pub max_bytes_allocated: usize,
    pub max_allocations: usize,
    pub max_alignment: usize,
    /* private fields */
}
Available on crate feature dep_rkyv only.
Expand description

Statistics for the allocations which occurred during serialization.

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§max_bytes_allocated: usize

Returns the maximum number of bytes that were concurrently allocated.

§max_allocations: usize

Returns the maximum number of concurrent allocations.

§max_alignment: usize

Returns the maximum alignment of requested allocations.

Implementations§

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impl AllocationStats

pub fn min_arena_capacity(&self) -> usize ⓘ

Returns the minimum arena capacity required to serialize the same data.

This calculation takes into account packing efficiency for slab allocated space. It is not exact, and has an error bound of max_allocations * (max_alignment - 1) bytes. This should be suitably small for most use cases.

pub fn min_arena_capacity_max_error(&self) -> usize ⓘ

Returns the maximum error term for the minimum arena capacity calculation.

Trait Implementations§

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impl Debug for AllocationStats

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

Formats the value using the given formatter. Read more

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type ArchivedMetadata = ()

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const BYTE_ALIGN: usize = _

The alignment of this type in bytes.
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const BYTE_SIZE: usize = _

The size of this type in bytes.
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fn byte_align(&self) -> usize ⓘ

Returns the alignment of this type in bytes.
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fn byte_size(&self) -> usize ⓘ

Returns the size of this type in bytes. Read more
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fn ptr_size_ratio(&self) -> [usize; 2]

Returns the size ratio between Ptr::BYTES and BYTE_SIZE. Read more
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const NEEDS_DROP: bool = _

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fn mem_align_of<T>() -> usize ⓘ

Returns the minimum alignment of the type in bytes. Read more
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fn mem_align_of_val(&self) -> usize ⓘ

Returns the alignment of the pointed-to value in bytes. Read more
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const ALIGN: usize

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