Struct mmap_vec::MmapStats

pub struct MmapStats;

Provides few statistics about low level segment allocation.

This stats can be useful to debug or to export in various monitoring systems.

Implementations

impl MmapStats

pub fn active_segment(&self) -> u64

Get number of current segment mounted by this library.

On linux there is a systctl limit you can access with:

sysctl vm.max_map_count

pub fn ftruncate_failed(&self) -> u64

Get number of file truncate failed.

pub fn map_failed(&self) -> u64

Get number of segment creation failed.

pub fn unmap_failed(&self) -> u64

Get number of segment deletion failed.

Trait Implementations

impl Debug for MmapStats

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

Formats the value using the given formatter.

impl Default for MmapStats

fn default() -> MmapStats

Returns the “default value” for a type.