Struct Observation 

#[repr(C)]
pub struct Observation {
    pub instance_id: u32,
    pub op_kind: u16,
    pub flags: u16,
    pub latency_ticks: u64,
    pub producer_thread_id: u32,
    pub _reserved: u32,
}

One observation record. 24 bytes - fits between two consecutive cache-line boundaries (3 per line, no straddling). The width carries a per-thread sequential identifier alongside the op data.

Fields

instance_id: u32

Stable identifier for the originating primitive instance.

op_kind: u16

Op kind (primitive-specific).

flags: u16

Bit flags (contention, miss, cold path, etc.).

latency_ticks: u64

Latency in raw TSC ticks.

producer_thread_id: u32

Process-local sequential thread id of the producer (returned by thread_id). 0 = unspecified.

_reserved: u32

Reserved for future-proofing the struct size to a multiple of 8 bytes; keeps Observation at 24 bytes (3 per cache line).

Implementations

impl Observation

pub const ZERO: Self

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.