Struct HeapStats 

pub struct HeapStats {
    pub used_bytes: usize,
    pub allocated_bytes: usize,
    pub rss_bytes: usize,
    pub virtual_bytes: usize,
    pub peak_rss_bytes: usize,
    pub segments: usize,
}

Heap statistics.

Fields

used_bytes: usize

Bytes currently used.

allocated_bytes: usize

Bytes currently allocated from OS.

rss_bytes: usize

Resident set size.

virtual_bytes: usize

Virtual memory size.

peak_rss_bytes: usize

Peak RSS.

segments: usize

Number of heap segments.

Implementations

impl HeapStats

pub fn capture() -> Self

Capture current heap statistics.

pub fn fragmentation_ratio(&self) -> f64

Calculate fragmentation ratio (0.0 = no fragmentation, 1.0 = highly fragmented).

pub fn efficiency(&self) -> f64

Get memory efficiency (used / allocated).

Trait Implementations

impl Clone for HeapStats

fn clone(&self) -> HeapStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HeapStats

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

Formats the value using the given formatter.

impl Default for HeapStats

fn default() -> HeapStats

Returns the “default value” for a type.