Struct PipelineCacheMetrics 

pub struct PipelineCacheMetrics {
    pub lookups: u64,
    pub hits: u64,
    pub misses: u64,
    pub puts: u64,
    pub rejected_puts: u64,
    pub evictions: u64,
    pub evicted_bytes: u64,
    pub flushes: u64,
    pub flush_errors: u64,
    pub cached_bytes: u64,
    pub entries: u64,
}

Pipeline-cache instrumentation counters.

Fields

lookups: u64

Lookup attempts.

hits: u64

Successful lookups.

misses: u64

Failed lookups.

puts: u64

Accepted put attempts.

rejected_puts: u64

Rejected put attempts, usually because a blob exceeds the byte budget.

evictions: u64

Entries evicted by capacity or byte-budget pressure.

evicted_bytes: u64

Bytes removed by eviction.

flushes: u64

Explicit flush attempts.

flush_errors: u64

Explicit flush failures.

cached_bytes: u64

Current retained bytes when the backend can report them cheaply.

entries: u64

Current retained entries when the backend can report them cheaply.

Implementations

impl PipelineCacheMetrics

pub fn hit_rate_ppm(&self) -> u32

Cache-hit rate in parts per million.

pub fn try_hit_rate_ppm(&self) -> Result<u32, PipelineCacheMetricError>

Fallibly compute cache-hit rate in parts per million.

Errors

Returns PipelineCacheMetricError when the numerator or final value cannot fit the public metric ABI.

Trait Implementations

impl Clone for PipelineCacheMetrics

fn clone(&self) -> PipelineCacheMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PipelineCacheMetrics

impl Debug for PipelineCacheMetrics

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

Formats the value using the given formatter.

impl Default for PipelineCacheMetrics

fn default() -> PipelineCacheMetrics

Returns the “default value” for a type.

impl Eq for PipelineCacheMetrics

impl PartialEq for PipelineCacheMetrics

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