Struct BufferStats 

pub struct BufferStats {
    pub hits: u64,
    pub misses: u64,
    pub evictions: u64,
    pub resident_pages: u64,
}

A snapshot of buffer-pool cache activity, for metrics. hits / (hits + misses) is the page cache hit ratio, the primary read-performance signal.

Fields

hits: u64

misses: u64

evictions: u64

resident_pages: u64

Frames currently holding a page.

Trait Implementations

impl Clone for BufferStats

fn clone(&self) -> BufferStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BufferStats

impl Debug for BufferStats

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

Formats the value using the given formatter.

impl Default for BufferStats

fn default() -> BufferStats

Returns the “default value” for a type.