Enum ReadAheadPattern 

pub enum ReadAheadPattern {
    Repeated,
    Sequential,
    Strided {
        stride: u64,
    },
    Random,
}

Classification of block offset access patterns.

Variants

Repeated

Every access targets the same offset.

Sequential

Each access advances by exactly 1 block offset.

Strided

Each access advances by the same constant stride (> 1).

Fields

stride: u64

The constant stride between consecutive accesses.

Random

No discernible pattern.

Implementations

impl ReadAheadPattern

pub fn detect(history: &[u64]) -> Self

Analyse a history slice and return the best-fitting pattern.

Requires at least 2 entries; a single-entry (or empty) slice returns Random because there is insufficient evidence for any pattern.

Trait Implementations

impl Clone for ReadAheadPattern

fn clone(&self) -> ReadAheadPattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReadAheadPattern

impl Debug for ReadAheadPattern

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

Formats the value using the given formatter.

impl Eq for ReadAheadPattern

impl PartialEq for ReadAheadPattern

fn eq(&self, other: &ReadAheadPattern) -> 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 StructuralPartialEq for ReadAheadPattern