Struct TopologyJson 

pub struct TopologyJson {
    pub num_numa_nodes: u32,
    pub num_llcs: u32,
    pub cores_per_llc: u32,
    pub threads_per_core: u32,
}

JSON-friendly mirror of Topology for the verifier wire format. Captures the four-tuple shape (numa nodes × LLCs × cores × threads) the per-scheduler baseline topology was declared with. The verifier uses this when computing the sweep matrix — the baseline anchors the default cell when no gauntlet preset matches the scheduler’s constraints.

Fields

num_numa_nodes: u32

NUMA node count. Maps to Topology::num_numa_nodes.

num_llcs: u32

Last-level cache (LLC) count, equivalent to “sockets” on pre-CCX/CCD x86. Maps to Topology::num_llcs.

cores_per_llc: u32

Physical cores per LLC. Mirrors Topology::cores_per_llc.

threads_per_core: u32

Hardware threads per physical core. 1 for non-SMT; 2 for x86 hyperthreading. Mirrors Topology::threads_per_core.

Implementations

impl TopologyJson

pub const SINGLE_CPU: Self

Single-CPU baseline: 1 NUMA node × 1 LLC × 1 core × 1 thread. Used by cargo ktstr verifier and verifier-pipeline tests as the no-scheduling-workload default.

Trait Implementations

impl Clone for TopologyJson

fn clone(&self) -> TopologyJson

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TopologyJson

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TopologyJson

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Topology> for TopologyJson

Project a Topology into its wire-format mirror. Drops the nodes and distances fields (uniform-distribution shape only); callers that need to preserve explicit per-node config or distance matrices must not use this conversion. Takes Topology by value (it derives Copy) to match the by-value shape of [From<TopologyConstraintsJson> for TopologyConstraints].

fn from(t: Topology) -> Self

Converts to this type from the input type.

impl PartialEq for TopologyJson

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for TopologyJson

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<TopologyJson> for Topology

Result-based validation for wire-format topology values. Lets the verifier dispatch surface a per-cell “topology rejected” diagnostic instead of taking the Topology::new panic surface in the builder. Mirrors Topology::validate — any field == 0, overflow in total CPU count, or llcs not divisible by numa_nodes returns Err. The result is a uniform-distribution Topology (nodes = None, distances = None); explicit per-node config and distance matrices require constructing Topology directly.

type Error = String

The type returned in the event of a conversion error.

fn try_from(value: TopologyJson) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for TopologyJson

impl Eq for TopologyJson

impl StructuralPartialEq for TopologyJson