Struct jemalloc_ctl::stats::Active

pub struct Active(_);

A type providing access to the total number of bytes in active pages allocated by the application.

This is a multiple of the page size, and greater than or equal to the value returned by Allocated.

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

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

Examples

extern crate jemallocator;
extern crate jemalloc_ctl;

use jemalloc_ctl::Epoch;
use jemalloc_ctl::stats::Active;

#[global_allocator]
static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;

fn main() {
    let epoch = Epoch::new().unwrap();
    let active = Active::new().unwrap();

    let a = active.get().unwrap();
    let _buf = vec![0; 1024 * 1024];
    epoch.advance().unwrap();
    let b = active.get().unwrap();
    assert!(a < b);
}

Methods

impl Active

pub fn new() -> Result<Active>

Returns a new Allocated.

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

Returns the total number of bytes in active pages allocated by the application.

Trait Implementations

impl Copy for Active

impl Clone for Active

fn clone(&self) -> Active

Returns a copy of the value.

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

Performs copy-assignment from source.