Struct jemalloc_ctl::stats::Mapped

pub struct Mapped(_);

A type providing access to the total number of bytes in active extents mapped by the allocator.

This does not include inactive extents, even those that contain unused dirty pages, so there is no strict ordering between this and the value returned by Resident. 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.mapped in jemalloc's API.

Examples

use jemalloc_ctl::Epoch;
use jemalloc_ctl::stats::Mapped;

let epoch = Epoch::new().unwrap();
let mapped = Mapped::new().unwrap();

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

Methods

impl Mapped

pub fn new() -> Result<Mapped>

Returns a new Mapped.

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

Returns the total number of bytes in active extents mapped by the allocator.

Trait Implementations

impl Copy for Mapped

impl Clone for Mapped

fn clone(&self) -> Mapped

Returns a copy of the value.

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

Performs copy-assignment from source.