Enum CpuLevel 

#[non_exhaustive]
pub enum CpuLevel {
    Scalar,
    Sse2,
    Sse42,
    Bmi2,
    Avx2,
    Avx512,
    Neon,
    Sve,
}

The ceiling on the instruction sets the kernels may use: see set_cpu_ceiling. The ceiling on the instruction sets the kernels may use: see set_cpu_ceiling. The ceiling on the instruction sets the kernels may use: see set_cpu_ceiling. An instruction-set level the codec’s kernels may be limited to, from the portable scalar code up. The x86 levels (Sse2 through Avx512) and the aarch64 ones (Neon, Sve) are separate ladders; Scalar sits under both.

Used with set_cpu_ceiling to compare kernel tiers on one machine.

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.

Scalar

Portable code only.

Sse2

x86 SSE2.

Sse42

x86 SSE4.2.

Bmi2

x86 BMI2, with everything below it.

Avx2

x86 AVX2 (and BMI2), the x86-64-v3 kernels.

Avx512

x86 AVX-512 (the VBMI2 kernels, when built with kernel-vbmi2).

Neon

aarch64 NEON.

Sve

aarch64 SVE and SVE2.

Implementations

impl CpuLevel

pub const ALL: [CpuLevel; 8]

Every level, lowest first within each ladder.

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

The level’s name as FromStr reads it.

Examples

use structured_zstd::CpuLevel;

assert_eq!(CpuLevel::Sse42.name(), "sse4.2");
assert_eq!("avx2".parse::<CpuLevel>(), Ok(CpuLevel::Avx2));

Trait Implementations

impl Clone for CpuLevel

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 CpuLevel

impl Debug for CpuLevel

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

Formats the value using the given formatter.

impl Display for CpuLevel

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

Formats the value using the given formatter.

impl Eq for CpuLevel

impl FromStr for CpuLevel

fn from_str(text: &str) -> Result<Self, Self::Err>

The names CpuLevel::name gives, case-insensitive, plus the spellings sse42, avx-512 and avx512f.

type Err = UnknownCpuLevel

The associated error which can be returned from parsing.

impl Hash for CpuLevel

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CpuLevel

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CpuLevel