#jemalloc #allocator #api-bindings

no-std jemalloc-ctl

A safe wrapper over jemalloc's control and introspection APIs

10 releases

0.5.4 Jul 27, 2023
0.5.0 May 25, 2022
0.3.3 Jun 16, 2019
0.2.0 Aug 2, 2018
0.1.1 Oct 27, 2017

#26 in Memory management

Download history 39652/week @ 2023-11-21 72510/week @ 2023-11-28 61458/week @ 2023-12-05 63888/week @ 2023-12-12 47240/week @ 2023-12-19 9537/week @ 2023-12-26 48741/week @ 2024-01-02 47129/week @ 2024-01-09 57956/week @ 2024-01-16 55304/week @ 2024-01-23 52479/week @ 2024-01-30 56673/week @ 2024-02-06 58495/week @ 2024-02-13 50332/week @ 2024-02-20 71653/week @ 2024-02-27 39657/week @ 2024-03-05

227,175 downloads per month
Used in 23 crates (15 directly)

MIT/Apache

2MB
52K SLoC

C 47K SLoC // 0.1% comments Rust 1.5K SLoC // 0.1% comments Visual Studio Project 1.5K SLoC M4 658 SLoC // 0.1% comments Shell 380 SLoC // 0.3% comments C++ 371 SLoC // 0.1% comments Python 261 SLoC // 0.3% comments Visual Studio Solution 125 SLoC XSL 9 SLoC

jemalloc-ctl

Travis-CI Status Latest Version docs

A safe wrapper over jemalloc's mallctl*() control and introspection APIs.

Documentation

Platform support

Supported on all platforms supported by the jemallocator crate.

Example


use std::thread;
use std::time::Duration;
use jemalloc_ctl::{stats, epoch};

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

fn main() {
    // Obtain a MIB for the `epoch`, `stats.allocated`, and
    // `atats.resident` keys:
    let e = epoch::mib().unwrap();
    let allocated = stats::allocated::mib().unwrap();
    let resident = stats::resident::mib().unwrap();
    
    loop {
        // Many statistics are cached and only updated 
        // when the epoch is advanced:
        e.advance().unwrap();
        
        // Read statistics using MIB key:
        let allocated = allocated.read().unwrap();
        let resident = resident.read().unwrap();
        println!("{} bytes allocated/{} bytes resident", allocated, resident);
        thread::sleep(Duration::from_secs(10));
    }
}

License

This project is licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in jemalloc-ctl by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Dependencies