contur::Statistics Class Reference

Tracks per-process burst history and EWMA burst prediction. More...

#include <statistics.h>

Public Member Functions
	Statistics (double alpha=0.5)
	~Statistics ()
	Statistics (const Statistics &)=delete
Statistics &	operator= (const Statistics &)=delete
	Statistics (Statistics &&) noexcept
Statistics &	operator= (Statistics &&) noexcept
void	recordBurst (ProcessId pid, Tick burst)
	Records an observed CPU burst for the process.
Tick	predictedBurst (ProcessId pid) const noexcept
	Returns the current predicted burst (0 if unknown).
bool	hasPrediction (ProcessId pid) const noexcept
	Returns true if the process already has a prediction.
void	clear (ProcessId pid)
	Clears statistics for one process.
void	reset ()
	Clears statistics for all processes.
double	alpha () const noexcept
	Returns EWMA alpha in range (0, 1].

Private Attributes
std::unique_ptr< Impl >	impl_

Detailed Description

Tracks per-process burst history and EWMA burst prediction.

Definition at line 13 of file statistics.h.

Constructor & Destructor Documentation

Statistics() [1/3]

contur::Statistics::Statistics ( double alpha = 0.5 )

explicit

~Statistics()

contur::Statistics::~Statistics

(

)

Statistics() [2/3]

contur::Statistics::Statistics ( const Statistics & )

delete

Statistics() [3/3]

contur::Statistics::Statistics ( Statistics && )

noexcept

Member Function Documentation

alpha()

double contur::Statistics::alpha ( ) const

nodiscardnoexcept

Returns EWMA alpha in range (0, 1].

clear()

void contur::Statistics::clear

(

ProcessId

pid

)

Clears statistics for one process.

hasPrediction()

bool contur::Statistics::hasPrediction ( ProcessId pid ) const

nodiscardnoexcept

Returns true if the process already has a prediction.

operator=() [1/2]

Statistics & contur::Statistics::operator= ( const Statistics & )

delete

operator=() [2/2]

Statistics & contur::Statistics::operator= ( Statistics && )

noexcept

predictedBurst()

Tick contur::Statistics::predictedBurst ( ProcessId pid ) const

nodiscardnoexcept

Returns the current predicted burst (0 if unknown).

recordBurst()

void contur::Statistics::recordBurst	(	ProcessId	pid,
		Tick	burst )

Records an observed CPU burst for the process.

reset()

void contur::Statistics::reset

(

)

Clears statistics for all processes.

Member Data Documentation

impl_

std::unique_ptr<Impl> contur::Statistics::impl_

private

Definition at line 44 of file statistics.h.

---

The documentation for this class was generated from the following file:

• include/contur/scheduling/statistics.h