Enum Performance 

pub enum Performance {
    Fast,
    Moderate,
    Slow,
    DeliberatelySlow,
}

Rough throughput expectation on the portable backend.

This is deliberately a static, backend-independent property: the same algorithm is Slow on a microcontroller and fast on a server with AES-NI, and an entry cannot be both. Consult runtime::backend() for what the machine in front of you will actually do — a Slow AES entry on a HardwareAccelerated backend runs at GB/s, not MB/s.

Variants

Fast

Fast enough for bulk data on any target.

Moderate

Usable for bulk data, noticeably slower than a hardware backend.

Slow

Acceptable for keys and small messages; avoid for bulk data.

DeliberatelySlow

Intentionally expensive (password hashing).

Implementations

impl Performance

pub const ALL: &'static [Performance]

Every variant, for callers that enumerate them.

The published JSON Schema builds its enum from this. It used to carry the strings inline, which is how implementationStatus came to omit experimental after that status was added – the schema then rejected the very entries it most needed to describe.

pub const fn id(self) -> &'static str

Stable identifier used in every serialized form.

Trait Implementations

impl Clone for Performance

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Performance

impl Debug for Performance

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

Formats the value using the given formatter.

impl Eq for Performance

impl Ord for Performance

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Performance

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Performance

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Performance