Enum EnforcementLevel 

pub enum EnforcementLevel {
    Strict,
    BestEffort {
        reason: String,
    },
    None {
        reason: String,
    },
}

Reports the actual enforcement level achieved for an operation.

When using soft mode, operations may succeed with reduced guarantees. This enum allows callers to inspect what level of NUMA policy enforcement was actually achieved.

Variants

Strict

The policy is fully enforced.

Memory is bound to the requested nodes, threads are pinned, and the kernel guarantees the placement.

BestEffort

The policy was applied but is not guaranteed.

The kernel will try to honor the policy, but may move pages or threads under memory pressure or other conditions.

Fields

reason: String

Why strict enforcement was not possible.

None

No NUMA policy was applied.

The operation succeeded, but no NUMA-specific behavior is in effect. Memory may be allocated from any node.

Fields

reason: String

Why no policy could be applied.

Implementations

impl EnforcementLevel

pub fn strict() -> Self

Create a strict enforcement level.

pub fn best_effort(reason: impl Into<String>) -> Self

Create a best-effort enforcement level.

pub fn none(reason: impl Into<String>) -> Self

Create a none enforcement level.

pub fn is_strict(&self) -> bool

Check if this is strict enforcement.

pub fn is_best_effort(&self) -> bool

Check if this is best-effort enforcement.

pub fn is_none(&self) -> bool

Check if no enforcement was applied.

pub fn reason(&self) -> Option<&str>

Get the degradation reason, if any.

Trait Implementations

impl Clone for EnforcementLevel

fn clone(&self) -> EnforcementLevel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EnforcementLevel

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

Formats the value using the given formatter.

impl Default for EnforcementLevel

fn default() -> EnforcementLevel

Returns the “default value” for a type.

impl Display for EnforcementLevel

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

Formats the value using the given formatter.

impl PartialEq for EnforcementLevel

fn eq(&self, other: &EnforcementLevel) -> 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 Eq for EnforcementLevel

impl StructuralPartialEq for EnforcementLevel