SchedulerMetrics

veridian_kernel::sched::metrics

Struct SchedulerMetrics

pub struct SchedulerMetrics {Show 14 fields
    pub context_switches: AtomicU64,
    pub voluntary_switches: AtomicU64,
    pub involuntary_switches: AtomicU64,
    pub scheduler_cycles: AtomicU64,
    pub switch_cycles: AtomicU64,
    pub schedule_calls: AtomicU64,
    pub idle_scheduled: AtomicU64,
    pub avg_switch_latency: AtomicU64,
    pub min_switch_latency: AtomicU64,
    pub max_switch_latency: AtomicU64,
    pub load_balance_count: AtomicU64,
    pub task_migrations: AtomicU64,
    pub ipc_blocks: AtomicU64,
    pub ipc_wakeups: AtomicU64,
}

Expand description

Scheduler performance metrics

Fields§

§context_switches: AtomicU64

Total number of context switches

§voluntary_switches: AtomicU64

Number of voluntary context switches (yield, sleep, block)

§involuntary_switches: AtomicU64

Number of involuntary context switches (preemption)

§scheduler_cycles: AtomicU64

Total CPU cycles spent in scheduler

§switch_cycles: AtomicU64

Total CPU cycles spent in context switching

§schedule_calls: AtomicU64

Number of scheduling decisions made

§idle_scheduled: AtomicU64

Number of times idle task was scheduled

§avg_switch_latency: AtomicU64

Average context switch latency in cycles

§min_switch_latency: AtomicU64

Minimum context switch latency

§max_switch_latency: AtomicU64

Maximum context switch latency

§load_balance_count: AtomicU64

Load balancing operations

§task_migrations: AtomicU64

Task migrations between CPUs

§ipc_blocks: AtomicU64

IPC blocks

§ipc_wakeups: AtomicU64

IPC wakeups

Implementations§

impl SchedulerMetrics

pub const fn new() -> Self

Create new metrics instance

pub fn record_context_switch(&self, latency_cycles: u64, voluntary: bool)

Record a context switch

pub fn record_scheduler_overhead(&self, cycles: u64)

Record scheduler overhead

pub fn record_idle_scheduled(&self)

Record idle task scheduled

pub fn record_load_balance(&self)

Record load balancing operation

pub fn record_migration(&self)

Record task migration

pub fn record_ipc_block(&self)

Record IPC block

pub fn record_ipc_wakeup(&self)

Record IPC wakeup

pub fn get_summary(&self) -> MetricsSummary

Get summary of metrics

pub fn reset(&self)

Reset all metrics

Trait Implementations§

impl Default for SchedulerMetrics

fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

impl !Freeze for SchedulerMetrics

impl RefUnwindSafe for SchedulerMetrics

impl Send for SchedulerMetrics

impl Sync for SchedulerMetrics

impl Unpin for SchedulerMetrics

impl UnwindSafe for SchedulerMetrics

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.