ModuleStatistics Class Reference

Keep track of time and memory consumption during processing. More...

#include <ModuleStatistics.h>

Public Types
enum	EStatisticCounters {   c_Init ,   c_BeginRun ,   c_Event ,   c_EndRun ,   c_Term ,   c_Total }
	Enum to define all counter types. More...
typedef double	value_type
	type of float variable to use for calculations and storage

Public Member Functions
	ModuleStatistics (const std::string &name="")
	Construct with a given name.
void	add (EStatisticCounters type, value_type time, value_type memory)
	Add a time and memory measurment to the counter of a given type.
void	update (const ModuleStatistics &other)
	Add statistics for each category.
void	setName (const std::string &name)
	Set the name of the module for display.
void	setIndex (int index)
	Set the index of the module when displaying statistics.
const std::string &	getName () const
	Return the previously set name.
int	getIndex () const
	Return the index.
value_type	getCalls (EStatisticCounters type=c_Total) const
	return the number of calls for a given counter type
value_type	getTimeSum (EStatisticCounters type=c_Total) const
	return the sum of all execution times for a given counter
value_type	getTimeMean (EStatisticCounters type=c_Total) const
	return the mean execution time for a given counter
value_type	getTimeStddev (EStatisticCounters type=c_Total) const
	return the stddev of the execution times for a given counter
value_type	getMemorySum (EStatisticCounters type=c_Total) const
	return the total used memory for a given counter
value_type	getMemoryMean (EStatisticCounters type=c_Total) const
	return the average memory change per call
value_type	getMemoryStddev (EStatisticCounters type=c_Total) const
	return the stddev of the memory consumption changes per call
value_type	getTimeMemoryCorrelation (EStatisticCounters type=c_Total) const
	return the pearson correlation coefficient between execution times and memory consumption changes
void	csv_header (std::ostream &output) const
	write csv header to the given stream
void	csv (std::ostream &output) const
	write data to the given stream in csv format
bool	operator== (const ModuleStatistics &other) const
	Check if name is identical.
bool	operator!= (const ModuleStatistics &other) const
	inequality.
void	clear ()
	Clear all statistics.

Private Attributes
int	m_index
	display index of the module
std::string	m_name
	name of module
CalcMeanCov< 2, value_type >	m_stats [c_Total+1]
	array with mean/covariance for all counters

Detailed Description

Keep track of time and memory consumption during processing.

This class offers a counter for time and memory consumption for all processing steps (initialize, beginRun, event, endRun, terminate and total). It will automatically calculate a running mean, stddev and correlation factor between time and memory consumption.

Definition at line 27 of file ModuleStatistics.h.

Member Typedef Documentation

value_type

typedef double value_type

type of float variable to use for calculations and storage

Definition at line 46 of file ModuleStatistics.h.

Member Enumeration Documentation

EStatisticCounters

enum EStatisticCounters

Enum to define all counter types.

Enumerator
c_Init	Counting time/calls in initialize()
c_BeginRun	Counting time/calls in beginRun()
c_Event	Counting time/calls in event()
c_EndRun	Counting time/calls in endRun()
c_Term	Counting time/calls in terminate()
c_Total	Sum of the above.

Definition at line 30 of file ModuleStatistics.h.

                            {
      c_Init,
      c_BeginRun,
      c_Event,
      c_EndRun,
      c_Term,
      c_Total
    };

Constructor & Destructor Documentation

ModuleStatistics()

ModuleStatistics ( const std::string &  name = "" )

inlineexplicit

Construct with a given name.

Definition at line 49 of file ModuleStatistics.h.

: m_index(0), m_name(name) {}

Member Function Documentation

add()

void add ( EStatisticCounters  type, value_type  time, value_type  memory  )

inline

Add a time and memory measurment to the counter of a given type.

Parameters

type	Type of counter to add the value to
time	time used during execution
memory	memory size change during execution

Definition at line 56 of file ModuleStatistics.h.

    {
      m_stats[type].add(time, memory);
      if (type != c_Total)
        m_stats[c_Total].add(time, memory);
    }

clear()

void clear ( )

inline

Clear all statistics.

Definition at line 135 of file ModuleStatistics.h.

    {
      for (auto& stat : m_stats) stat.clear();
    }

csv()

void csv

(

std::ostream &

output

)

const

write data to the given stream in csv format

Definition at line 25 of file ModuleStatistics.cc.

{
  output << m_name;
 
  for (EStatisticCounters type = c_Init; type <= c_Total; type = EStatisticCounters(type + 1)) {
    output << "," << m_stats[type].getSum<0>();
  }
  output << "," << m_stats[c_Event].getMean<0>() << ","  << m_stats[c_Event].getStddev<0>();
 
  for (EStatisticCounters type = c_Init; type <= c_Total; type = EStatisticCounters(type + 1)) {
    output << "," << m_stats[type].getSum<1>();
  }
  output << "," << m_stats[c_Event].getMean<1>() << ","  << m_stats[c_Event].getStddev<1>();
 
  output << std::endl;
}

csv_header()

void csv_header

(

std::ostream &

output

)

const

write csv header to the given stream

Definition at line 13 of file ModuleStatistics.cc.

{
  output << "name";
  for (auto resource : {"time", "memory"}) {
    for (auto type : {"init", "begin_run", "event", "end_run", "term", "total"}) {
      output << "," << resource << " " << type;
    }
    output << "," << resource << " mean" << "," << resource << " stddev";
  }
  output << std::endl;
}

getCalls()

value_type getCalls ( EStatisticCounters  type = c_Total ) const

inline

return the number of calls for a given counter type

Definition at line 82 of file ModuleStatistics.h.

    {
      return m_stats[type].getEntries();
    }

getIndex()

int getIndex ( ) const

inline

Return the index.

Definition at line 79 of file ModuleStatistics.h.

{ return m_index; }

getMemoryMean()

value_type getMemoryMean ( EStatisticCounters  type = c_Total ) const

inline

return the average memory change per call

Definition at line 108 of file ModuleStatistics.h.

    {
      return m_stats[type].getMean<1>();
    }

getMemoryStddev()

value_type getMemoryStddev ( EStatisticCounters  type = c_Total ) const

inline

return the stddev of the memory consumption changes per call

Definition at line 113 of file ModuleStatistics.h.

    {
      return m_stats[type].getStddev<1>();
    }

getMemorySum()

value_type getMemorySum ( EStatisticCounters  type = c_Total ) const

inline

return the total used memory for a given counter

Definition at line 103 of file ModuleStatistics.h.

    {
      return m_stats[type].getSum<1>();
    }

getName()

const std::string & getName ( ) const

inline

Return the previously set name.

Definition at line 77 of file ModuleStatistics.h.

{ return m_name; }

getTimeMean()

value_type getTimeMean ( EStatisticCounters  type = c_Total ) const

inline

return the mean execution time for a given counter

Definition at line 93 of file ModuleStatistics.h.

    {
      return m_stats[type].getMean<0>();
    }

getTimeMemoryCorrelation()

value_type getTimeMemoryCorrelation ( EStatisticCounters  type = c_Total ) const

inline

return the pearson correlation coefficient between execution times and memory consumption changes

Definition at line 119 of file ModuleStatistics.h.

    {
      return m_stats[type].getCorrelation<0, 1>();
    }

getTimeStddev()

value_type getTimeStddev ( EStatisticCounters  type = c_Total ) const

inline

return the stddev of the execution times for a given counter

Definition at line 98 of file ModuleStatistics.h.

    {
      return m_stats[type].getStddev<0>();
    }

getTimeSum()

value_type getTimeSum ( EStatisticCounters  type = c_Total ) const

inline

return the sum of all execution times for a given counter

Definition at line 88 of file ModuleStatistics.h.

    {
      return m_stats[type].getSum<0>();
    }

operator!=()

bool operator!= ( const ModuleStatistics &  other ) const

inline

inequality.

Definition at line 132 of file ModuleStatistics.h.

{ return !(*this == other); }

operator==()

bool operator== ( const ModuleStatistics &  other ) const

inline

Check if name is identical.

Definition at line 130 of file ModuleStatistics.h.

{ return m_name == other.m_name; }

setIndex()

void setIndex ( int  index )

inline

Set the index of the module when displaying statistics.

Definition at line 74 of file ModuleStatistics.h.

{ m_index = index; }

setName()

void setName ( const std::string &  name )

inline

Set the name of the module for display.

Definition at line 72 of file ModuleStatistics.h.

{ m_name = name; }

update()

void update ( const ModuleStatistics &  other )

inline

Add statistics for each category.

Definition at line 64 of file ModuleStatistics.h.

    {
      for (int i = c_Init; i <= c_Total; i++) {
        m_stats[i].add(other.m_stats[i]);
      }
    }

Member Data Documentation

m_index

int m_index

private

display index of the module

Definition at line 141 of file ModuleStatistics.h.

m_name

std::string m_name

private

name of module

Definition at line 143 of file ModuleStatistics.h.

m_stats

CalcMeanCov<2, value_type> m_stats[c_Total+1]

private

array with mean/covariance for all counters

Definition at line 145 of file ModuleStatistics.h.

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

• framework/core/include/ModuleStatistics.h
• framework/core/src/ModuleStatistics.cc