Struct RqClockSample 

pub struct RqClockSample { /* private fields */ }

One Linux-style runqueue-clock observation for a target CPU.

clock is the corrected sched_clock_cpu() value. hardirq_time_ns is present only when the runtime enables Linux-style IRQ time accounting and can publish the target CPU’s cumulative interrupt time coherently with that clock. The runqueue owner must treat absence like Linux built without CONFIG_IRQ_TIME_ACCOUNTING: task time advances by the full clock delta and IRQ PELT remains disabled.

Implementations

impl RqClockSample

pub const fn new(clock: SchedulerTimestamp, hardirq_time_ns: u64) -> Self

Creates one coherent runqueue-clock observation.

pub const fn without_irq_time_accounting(clock: SchedulerTimestamp) -> Self

Creates a sample from a runtime without IRQ time accounting authority.

pub const fn with_capacity_scales( clock: SchedulerTimestamp, hardirq_time_ns: u64, frequency_capacity: u32, cpu_capacity: u32, ) -> Option<Self>

Adds Linux scheduler-capacity scaling for the sampled CPU.

Both scales use SCHED_CAPACITY_SCALE == 1024. The current ArceOS runtime uses the full-capacity default on fixed-frequency homogeneous systems; a platform with frequency invariance can publish narrower values through this constructor.

pub const fn clock(self) -> SchedulerTimestamp

Returns the corrected scheduler-clock value.

pub const fn hardirq_time_ns(self) -> Option<u64>

Returns cumulative hard-interrupt time for the target CPU.

pub const fn frequency_capacity(self) -> u32

Returns Linux arch_scale_freq_capacity() units.

pub const fn cpu_capacity(self) -> u32

Returns Linux arch_scale_cpu_capacity() units.

Trait Implementations

impl Clone for RqClockSample

fn clone(&self) -> RqClockSample

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RqClockSample

impl Debug for RqClockSample

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

Formats the value using the given formatter.

impl Eq for RqClockSample

impl PartialEq for RqClockSample

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RqClockSample