Struct CpuFeatures 

pub struct CpuFeatures {
    pub avx2: bool,
    pub avx512f: bool,
    pub avx512bw: bool,
    pub avx512vl: bool,
    pub sse4_2: bool,
    pub neon: bool,
}

CPU features detected at runtime.

Use CpuFeatures::detect to query the current CPU capabilities, or detect_cpu_features for a cached version backed by a OnceLock.

Fields

avx2: bool

AVX2 (256-bit integer / float SIMD).

avx512f: bool

AVX-512 Foundation (512-bit float SIMD).

avx512bw: bool

AVX-512 Byte-and-Word (512-bit byte/word integer SIMD).

avx512vl: bool

AVX-512 Vector Length extensions (128/256-bit masked operations).

sse4_2: bool

SSE 4.2 (128-bit SIMD with string/text processing extras).

neon: bool

ARM NEON (128-bit SIMD on aarch64).

Implementations

impl CpuFeatures

pub fn detect() -> Self

Detect CPU features on the current machine.

This is a thin wrapper around detect_cpu_features which caches the result in a OnceLock so subsequent calls are free.

pub fn best_simd_width(&self) -> usize

Return the widest available SIMD register width in bits.

CPU capability	Width
AVX-512F	512
AVX2	256
SSE 4.2	128
scalar	64

Trait Implementations

impl Clone for CpuFeatures

fn clone(&self) -> CpuFeatures

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CpuFeatures

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

Formats the value using the given formatter.

impl PartialEq for CpuFeatures

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

impl Eq for CpuFeatures

impl StructuralPartialEq for CpuFeatures