Struct Stats 

pub struct Stats {

    pub reserved_bytes: u64,
    pub pinned_bytes: u64,
    pub committed_bytes: u64,
    pub committed_peak_bytes: u64,
    pub allocated_bytes: u64,
    pub allocated_peak_bytes: u64,
    pub purged_bytes: u64,
    pub purge_calls: u64,
    pub arena_purges: u64,
    pub mmap_calls: u64,
    pub commit_calls: u64,
    pub pages: u64,
    pub threads: u64,
    pub arenas: u64,
    pub huge_allocations: u64,
    pub huge_bytes: u64,
}

Process-wide allocator statistics, excluding allocations that C libraries make through the system allocator.

Operating system accounting (reservations, commits, purges, mappings, arenas, threads) is current when read. Allocation counters (Self::allocated_bytes, Self::allocated_peak_bytes, Self::pages, Self::huge_allocations, Self::huge_bytes) are merged from each thread when it collects or exits, but a huge allocation is counted immediately.

Fields

reserved_bytes: u64

Bytes mimalloc has mapped from the operating system for its arenas, page map, and directly mapped pages. Pinned reservations are counted in Self::pinned_bytes instead.

pinned_bytes: u64

Bytes of pinned reservations, which are never purged.

committed_bytes: u64

Bytes currently committed, as mimalloc accounts them. On systems that overcommit, an eagerly committed on-demand arena counts as its slices are first used, while an unpinned Reserve counts in full and then again as its slices are first used. On Unix, a purge does not lower the figure.

committed_peak_bytes: u64

Peak committed bytes.

allocated_bytes: u64

Bytes currently allocated to callers, counted in block sizes (so including size-class rounding).

allocated_peak_bytes: u64

Sum of the separately tracked peaks of normal and huge allocations, which can exceed their combined peak.

purged_bytes: u64

Cumulative bytes purged back to the operating system.

purge_calls: u64

Cumulative purge operations.

arena_purges: u64

Cumulative arena-level purge passes.

mmap_calls: u64

Cumulative memory mappings requested from the operating system.

commit_calls: u64

Cumulative commit operations.

pages: u64

Pages (mimalloc’s unit of size-class storage) currently in use.

threads: u64

Threads currently known to the allocator.

arenas: u64

Arenas currently managed.

huge_allocations: u64

Cumulative allocations larger than the largest size class, each served by a page of its own.

huge_bytes: u64

Cumulative bytes of those allocations.

Implementations

impl Stats

pub fn read() -> Option<Self>

Reads the current statistics, or None if the linked mimalloc’s statistics layout differs in size or version from the vendored header.

Trait Implementations

impl Clone for Stats

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Stats

impl Debug for Stats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Stats

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Stats

impl PartialEq for Stats

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Stats