Struct PoolStats 

pub struct PoolStats {
    pub hits: u64,
    pub misses: u64,
    pub returns: u64,
    pub drops: u64,
}

Statistics for monitoring TracePool usage and efficiency.

PoolStats tracks cache hits/misses and provides metrics to optimize memory pool performance in inference algorithms.

Example:

let mut pool = TracePool::new(5);

// Generate some cache activity
let trace1 = pool.get(); // miss
let trace2 = pool.get(); // miss
pool.return_trace(trace1);
let trace3 = pool.get(); // hit (reuses trace1)

// Check performance metrics
let stats = pool.stats();
println!("Hit ratio: {:.1}%", stats.hit_ratio());
println!("Total operations: {}", stats.total_gets());
assert_eq!(stats.hits, 1);
assert_eq!(stats.misses, 2);

Fields

hits: u64

Number of successful gets from the pool (cache hits).

misses: u64

Number of gets that required new allocation (cache misses).

returns: u64

Number of traces returned to the pool.

drops: u64

Number of traces dropped due to pool being full.

Implementations

impl PoolStats

pub fn hit_ratio(&self) -> f64

Calculate hit ratio as a percentage.

pub fn total_gets(&self) -> u64

Total number of get operations.

Trait Implementations

impl Clone for PoolStats

fn clone(&self) -> PoolStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PoolStats

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

Formats the value using the given formatter.

impl Default for PoolStats

fn default() -> PoolStats

Returns the “default value” for a type.