Struct NumaTopology 

pub struct NumaTopology {
    pub node_count: usize,
    pub cpus_per_node: Vec<Vec<CpuId>>,
    pub memory_per_node: Vec<u64>,
    pub distance_matrix: Vec<Vec<u32>>,
}

NUMA topology information

Fields

node_count: usize

Number of NUMA nodes

cpus_per_node: Vec<Vec<CpuId>>

CPUs per node

memory_per_node: Vec<u64>

Memory size per node (in bytes)

distance_matrix: Vec<Vec<u32>>

Distance matrix (relative latency between nodes)

Implementations

impl NumaTopology

pub fn new() -> Self

Create new NUMA topology

pub fn detect() -> Self

Detect NUMA topology from hardware.

Attempts to parse ACPI SRAT/SLIT tables for real multi-node topology. Falls back to a single UMA node if no ACPI tables are available.

pub fn cpu_to_node(&self, cpu: CpuId) -> Option<NodeId>

Get node for a given CPU

pub fn distance(&self, from: NodeId, to: NodeId) -> u32

Get distance between two nodes

pub fn same_node(&self, cpu1: CpuId, cpu2: CpuId) -> bool

Check if two CPUs are on the same node

Trait Implementations

impl Clone for NumaTopology

fn clone(&self) -> NumaTopology

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NumaTopology

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

Formats the value using the given formatter.

impl Default for NumaTopology

fn default() -> Self

Returns the “default value” for a type.