Struct jemalloc_ctl::stats::Resident

pub struct Resident(_);

A type providing access to the total number of bytes in physically resident data pages mapped by the allocator.

This consists of all pages dedicated to allocator metadata, pages backing active allocations, and unused dirty pages. It may overestimate the true value because pages may not actually be physically resident if they correspond to demand-zeroed virtual memory that has not yet been touched. This is a multiple of the page size, and is larger than the value returned by Active.

This statistic is cached, and is only refreshed when the epoch is advanced. See the Epoch type for more information.

This corresponds to stats.resident in jemalloc's API.

Examples

use jemalloc_ctl::Epoch;
use jemalloc_ctl::stats::Resident;

let epoch = Epoch::new().unwrap();
let resident = Resident::new().unwrap();

epoch.advance().unwrap();
let size = resident.get().unwrap();
println!("{} bytes of total resident data", size);

Methods

impl Resident

pub fn new() -> Result<Resident>

Returns a new Resident.

pub fn get(&self) -> Result<usize>

Returns the total number of bytes in physically resident data pages mapped by the allocator.

Trait Implementations

impl Copy for Resident

impl Clone for Resident

fn clone(&self) -> Resident

Returns a copy of the value.

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

Performs copy-assignment from source.