mimalloc-pprof 0.9.3

mimalloc global allocator with pprof-compatible sampled heap profiling
Documentation 
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mod common;
use mimalloc_pprof::prof;

#[test]
fn sampled_stream_estimates_one_hundred_mib() {
    common::start(524_288, 43);
    let blocks: Vec<_> = (0..25_600).map(|_| Box::new([0_u8; 4096])).collect();
    let text = common::dump();
    if let Some(path) = std::env::var_os("MIMALLOC_PPROF_CI_DUMP") {
        prof::dump_file(std::path::Path::new(&path)).expect("write CI heap profile");
    }
    let (objects, _, _, _, rate) = common::header(&text);
    assert_eq!(rate, 524_288);
    assert!((100..=400).contains(&objects));
    let estimated = objects * rate;
    assert!((50 * 1024 * 1024..=200 * 1024 * 1024).contains(&estimated));
    std::mem::forget(blocks);
    common::stop();
}