Stats::AvgStor Class Reference

Templatized storage and interface to a per-tick average stat. More...

#include <statistics.hh>

Classes
struct	Params

Public Member Functions
	AvgStor (Info *info)
	Build and initializes this stat storage. More...
void	set (Counter val)
	Set the current count to the one provided, update the total and last set values. More...
void	inc (Counter val)
	Increment the current count by the provided value, calls set. More...
void	dec (Counter val)
	Deccrement the current count by the provided value, calls set. More...
Counter	value () const
	Return the current count. More...
Result	result () const
	Return the current average. More...
bool	zero () const
void	prepare (Info *info)
	Prepare stat data for dumping or serialization. More...
void	reset (Info *info)
	Reset stat value to default. More...

Private Attributes
Counter	current
	The current count. More...
Tick	lastReset
	The tick of the last reset. More...
Result	total
	The total count for all tick. More...
Tick	last
	The tick that current last changed. More...

Detailed Description

Templatized storage and interface to a per-tick average stat.

This keeps a current count and updates a total (count * ticks) when this count changes. This allows the quick calculation of a per tick count of the item being watched. This is good for keeping track of residencies in structures among other things.

Definition at line 533 of file statistics.hh.

Constructor & Destructor Documentation

Stats::AvgStor::AvgStor ( Info *  info )

inline

Build and initializes this stat storage.

Definition at line 552 of file statistics.hh.

Member Function Documentation

void Stats::AvgStor::dec ( Counter  val )

inline

Deccrement the current count by the provided value, calls set.

Parameters

val	The amount to decrement.

Definition at line 579 of file statistics.hh.

References current, and set().

void Stats::AvgStor::inc ( Counter  val )

inline

Increment the current count by the provided value, calls set.

Parameters

val	The amount to increment.

Definition at line 573 of file statistics.hh.

References current, and set().

void Stats::AvgStor::prepare ( Info *  info )

inline

Prepare stat data for dumping or serialization.

Definition at line 607 of file statistics.hh.

References current, curTick(), last, and total.

void Stats::AvgStor::reset ( Info *  info )

inline

Reset stat value to default.

Definition at line 617 of file statistics.hh.

References curTick(), last, lastReset, and total.

Result Stats::AvgStor::result ( ) const

inline

Return the current average.

Returns

The current average.

Definition at line 592 of file statistics.hh.

References current, curTick(), last, lastReset, and total.

void Stats::AvgStor::set ( Counter  val )

inline

Set the current count to the one provided, update the total and last set values.

Parameters

val	The new count.

Definition at line 562 of file statistics.hh.

References current, curTick(), last, total, and X86ISA::val.

Referenced by dec(), and inc().

Counter Stats::AvgStor::value ( ) const

inline

Return the current count.

Returns

The current count.

Definition at line 585 of file statistics.hh.

References current.

bool Stats::AvgStor::zero ( ) const

inline

Returns

true if zero value

Definition at line 601 of file statistics.hh.

References total.

Member Data Documentation

Counter Stats::AvgStor::current

private

The current count.

Definition at line 537 of file statistics.hh.

Referenced by dec(), inc(), prepare(), result(), set(), and value().

Tick Stats::AvgStor::last

mutableprivate

The tick that current last changed.

Definition at line 543 of file statistics.hh.

Referenced by prepare(), reset(), result(), and set().

Tick Stats::AvgStor::lastReset

private

The tick of the last reset.

Definition at line 539 of file statistics.hh.

Referenced by reset(), and result().

Result Stats::AvgStor::total

mutableprivate

The total count for all tick.

Definition at line 541 of file statistics.hh.

Referenced by prepare(), reset(), result(), set(), and zero().

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

• base/statistics.hh