Enum MemoryAdvice 

pub enum MemoryAdvice {
    WillNeed,
    Random,
}

A kernel page-cache hint for a byte range within a mapped artifact.

This deliberately represents only the two policy actions the .fttsq access classes need. Adding another OS-specific hint requires giving it a model-level meaning first; otherwise an advisory syscall becomes an unreviewable collection of performance folklore.

Variants

WillNeed

The range is recurrent and should be faulted in before steady-state decoding.

Random

The range is sparse and row-granular, so read-ahead is counterproductive.

Trait Implementations

impl Clone for MemoryAdvice

fn clone(&self) -> MemoryAdvice

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MemoryAdvice

impl Debug for MemoryAdvice

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

Formats the value using the given formatter.

impl Eq for MemoryAdvice

impl PartialEq for MemoryAdvice

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MemoryAdvice