Enum Locality 

#[non_exhaustive]
pub enum Locality {
    L3,
    L2,
    L1,
}

🔬This is a nightly-only experimental API. (hint_prefetch #146941)

The expected temporal locality of a memory prefetch operation.

Locality expresses how likely the prefetched data is to be reused soon, and therefore which level of cache it should be brought into.

The locality is just a hint, and may be ignored on some targets or by the hardware.

Used with functions like prefetch_read and prefetch_write.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

L3

🔬This is a nightly-only experimental API. (hint_prefetch #146941)

Data is expected to be reused eventually.

Typically prefetches into L3 cache (if the CPU supports it).

L2

🔬This is a nightly-only experimental API. (hint_prefetch #146941)

Data is expected to be reused in the near future.

Typically prefetches into L2 cache.

L1

🔬This is a nightly-only experimental API. (hint_prefetch #146941)

Data is expected to be reused very soon.

Typically prefetches into L1 cache.

Trait Implementations

impl Clone for Locality

fn clone(&self) -> Locality

Returns a duplicate of the value.

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

where Self:,

Performs copy-assignment from source.

impl Copy for Locality

impl Debug for Locality

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

Formats the value using the given formatter.

impl Eq for Locality

impl Hash for Locality

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H)

where Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Locality

fn eq(&self, other: &Locality) -> 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 StructuralPartialEq for Locality