Enum MemoryResidency 

pub enum MemoryResidency {
    Measured {
        resident_pages: usize,
        total_pages: usize,
    },
    Unsupported,
}

An observation of which pages in one mapped byte range are currently resident.

This is intentionally an observation rather than an eviction or a residency promise: the OS owns page-cache policy, so callers use it to record an access-class measurement for OQ-18, not to turn a performance hint into a correctness condition.

Variants

Measured

mincore counted resident pages in the requested range.

Fields

resident_pages: usize

Pages the OS currently reports resident.

total_pages: usize

Pages spanned by the requested byte range.

Unsupported

This build deliberately has no native residency-query implementation.

Trait Implementations

impl Clone for MemoryResidency

fn clone(&self) -> MemoryResidency

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MemoryResidency

impl Debug for MemoryResidency

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

Formats the value using the given formatter.

impl Eq for MemoryResidency

impl PartialEq for MemoryResidency

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MemoryResidency