scx_utils

Struct Topology

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pub struct Topology {
    pub nodes: BTreeMap<usize, Node>,
    pub span: Cpumask,
    pub smt_enabled: bool,
    pub all_llcs: BTreeMap<usize, Arc<Llc>>,
    pub all_cores: BTreeMap<usize, Arc<Core>>,
    pub all_cpus: BTreeMap<usize, Arc<Cpu>>,
}

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§nodes: BTreeMap<usize, Node>§span: Cpumask

Cpumask all CPUs in the system.

§smt_enabled: bool

True if SMT is enabled in the system, false otherwise.

§all_llcs: BTreeMap<usize, Arc<Llc>>

Skip indices to access lower level members easily.

§all_cores: BTreeMap<usize, Arc<Core>>§all_cpus: BTreeMap<usize, Arc<Cpu>>

Implementations§

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impl Topology

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fn instantiate(span: Cpumask, nodes: BTreeMap<usize, Node>) -> Result<Self>

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pub fn new() -> Result<Topology>

Build a complete host Topology

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pub fn with_flattened_llc_node() -> Result<Topology>

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pub fn has_little_cores(&self) -> bool

Returns whether the Topology has a hybrid architecture of big and little cores.

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pub fn sibling_cpus(&self) -> Vec<i32>

Returns a vector that maps the index of each logical CPU to the sibling CPU. This represents the “next sibling” CPU within a package in systems that support SMT. The sibling CPU is the other logical CPU that shares the physical resources of the same physical core.

Assuming each core holds exactly at most two cpus.

Trait Implementations§

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impl Debug for Topology

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

Formats the value using the given formatter. Read more

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