Crate mimalloc_pprof 

Rust global allocator support for the in-tree mimalloc build.

use mimalloc_pprof::{prof, MiMalloc};
#[global_allocator] static ALLOCATOR: MiMalloc = MiMalloc;
prof::start(512 * 1024);
prof::dump_file(std::path::Path::new("heap.prof"))?;

See the README’s Rust integration guide for frame-pointer and line-table build flags. Open the resulting profile with pprof -http=: app.exe heap.prof.

Modules

prof

Safe controls for mimalloc’s sampled heap profiler.

sys

Raw bindings to the in-tree mimalloc static amalgamation.

Structs

MiMalloc

A #[global_allocator] implementation backed by mimalloc.

ProfConfig

Ergonomic, Rust-facing sibling of mi_prof_config_t (include/mimalloc/profile.h) for enable_heap_profiling_with.

Enums

DumpFormat

Output format for ProfConfig::dump_at_exit.

ProfConfigMode

How ProfConfig fields interact with the profiler’s environment variables and mi_option_* settings.

Functions

enable_heap_profiling

Turn on sampled heap profiling at the default sample rate.

enable_heap_profiling_with

Turn on sampled heap profiling using a struct-based configuration.

expand^⚠

Try to grow an allocation in place, without moving it.

recalloc^⚠

Grow or shrink an allocation to count * size bytes, zeroing any newly-exposed tail.

rezalloc^⚠

Grow or shrink an allocation, zeroing any newly-exposed tail.

unwrapped_free^⚠

Free a pointer returned by unwrapped_malloc or unwrapped_realloc.

unwrapped_malloc^⚠

Allocate size bytes from mimalloc’s raw-OS-layer “unwrapped” path.

unwrapped_realloc^⚠

Resize a pointer returned by unwrapped_malloc or unwrapped_realloc.

usable_size^⚠

Bytes actually available in an allocation, which may exceed what was requested.