Struct Counts 

pub struct Counts {
    pub entity_hits: u64,
    pub entity_misses: u64,
    pub query_hits: u64,
    pub query_misses: u64,
    pub too_large: u64,
    pub unsupported: u64,
    pub invalidations: u64,
}

One region’s tally.

Fields

entity_hits: u64

entity_misses: u64

query_hits: u64

query_misses: u64

too_large: u64

Result sets not stored because they were over max_rows.

unsupported: u64

Result sets not stored because a column cannot round-trip through JSON — a binary column. Worth watching: a table that never caches is a region that is doing nothing.

invalidations: u64

Generation bumps: how often a write threw this table’s queries away.

Implementations

impl Counts

pub fn hit_rate(&self) -> Option<f64>

Hits as a fraction of lookups, entities and queries together.

None when nothing has been looked up: a cache nobody has asked anything of has no hit rate, and reporting 0% would read as a problem.

Trait Implementations

impl Clone for Counts

fn clone(&self) -> Counts

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Counts

impl Debug for Counts

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

Formats the value using the given formatter.

impl Default for Counts

fn default() -> Counts

Returns the “default value” for a type.

impl Eq for Counts

impl PartialEq for Counts

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Counts