Enum MemoryAllocatorBackend

pub enum MemoryAllocatorBackend {
    Default,
    Jemalloc,
    Mimalloc,
    Snmalloc,
    Rust,
}

Defines a backend for a memory allocator.

This says which memory allocator API / library to configure the Python interpreter to use.

Not all allocators are available in all program builds.

Serialization type: string

Variants

Default

The default allocator as configured by Python.

This likely utilizes the system default allocator, normally the malloc(), free(), etc functions from the libc implementation being linked against.

Serialized value: default

Jemalloc

Use the jemalloc allocator.

Requires the binary to be built with jemalloc support.

Never available on Windows.

Serialized value: jemalloc

Mimalloc

Use the mimalloc allocator (https://github.com/microsoft/mimalloc).

Requires the binary to be built with mimalloc support.

Serialized value: mimalloc

Snmalloc

Use the snmalloc allocator (https://github.com/microsoft/snmalloc).

Not always available.

Serialized value: snmalloc

Rust

Use Rust’s global allocator.

The Rust allocator is less efficient than other allocators because of overhead tracking allocations. For optimal performance, use the default allocator. Or if Rust is using a custom global allocator, use the enum variant corresponding to that allocator.

Serialized value: rust

Trait Implementations

impl Clone for MemoryAllocatorBackend

fn clone(&self) -> MemoryAllocatorBackend

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryAllocatorBackend

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

Formats the value using the given formatter.

impl Default for MemoryAllocatorBackend

fn default() -> Self

Returns the “default value” for a type.

impl From<MemoryAllocatorBackend> for String

fn from(v: MemoryAllocatorBackend) -> Self

Converts to this type from the input type.

impl PartialEq for MemoryAllocatorBackend

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl ToString for MemoryAllocatorBackend

fn to_string(&self) -> String

Converts the given value to a String.

impl TryFrom<&str> for MemoryAllocatorBackend

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<String> for MemoryAllocatorBackend

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: String) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for MemoryAllocatorBackend

impl Eq for MemoryAllocatorBackend

impl StructuralPartialEq for MemoryAllocatorBackend