Enum AccessPattern 

pub enum AccessPattern {
    RandomRead,
    SequentialScan,
    RandomWrite,
    SequentialWrite,
    Mixed,
}

I/O access pattern for policy decisions

Variants

RandomRead

Random point reads

SequentialScan

Sequential scan

RandomWrite

Random writes

SequentialWrite

Sequential writes (WAL, compaction output)

Mixed

Mixed pattern

Implementations

impl AccessPattern

pub fn cache_benefit_probability(&self) -> f64

Estimate if this access will benefit from page cache

Trait Implementations

impl Clone for AccessPattern

fn clone(&self) -> AccessPattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AccessPattern

impl Debug for AccessPattern

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

Formats the value using the given formatter.

impl Eq for AccessPattern

impl PartialEq for AccessPattern

fn eq(&self, other: &AccessPattern) -> 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 AccessPattern