Struct Observation 

pub struct Observation {
    pub source: Source,
    pub label: u32,
}

One source’s report of a relation, carrying that source’s own label for it.

Why the label lives here and not on the relation

D-15 identifies a relation by (kind, membership), because that is what the sources agree about. What they do not agree about is naming: measured on the development host, the two report the same eight-group core partition while labelling it [0, 2, 4, ..., 14] and [0, 1, ..., 7]. Neither numbering is wrong and neither is a claim about the machine, so a single id on the relation would have to pick one arbitrarily and discard the other.

Putting the label on the observation removes the choice: one relation, two observations, each keeping what its source called it.

Fields

source: Source

Which API reported this relation.

label: u32

What that source called it.

A NUMA node number, a processor group number, a CPU-set CoreIndex, or – where the source numbers nothing – the position it was reported in. Meaningful only alongside Self::source, never on its own.

Implementations

impl Observation

pub fn new(source: Source, label: u32) -> Self

An observation by source, labelled label.

Trait Implementations

impl Clone for Observation

fn clone(&self) -> Observation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Observation

impl Debug for Observation

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Observation

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Observation

impl Hash for Observation

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Observation

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Observation

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Observation