| # Gaudi Framework, version v21r11 |

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# ChronoEntity Class Reference

a small helper class for implementation of ChronoStatSvc service, It also could be used as some local timer More...

`#include <GaudiKernel/ChronoEntity.h>`

Collaboration diagram for ChronoEntity:
[legend]

List of all members.

## Public Member Functions
| ChronoEntity ()
| default constructor
| ~ChronoEntity ()
| destructor
IChronoSvc::ChronoStatus | start ()
| start the current chrono
IChronoSvc::ChronoStatus | stop ()
| stop the chrono
IChronoSvc::ChronoTime | delta (IChronoSvc::ChronoType type) const
| return the last delta-time of type "type"
IChronoSvc::ChronoStatus | status () const
| return the status of chrono
unsigned long | nOfMeasurements () const
| number of chrono measurements
double | uMinimalTime () const
| minimal measurement for user time
double | kMinimalTime () const
| minimal measurement for kernel time
double | eMinimalTime () const
| minimal measurement for ellapsed time
double | uMaximalTime () const
| maximal measurement for user time
double | kMaximalTime () const
| maximal measurement for kernel time
double | eMaximalTime () const
| maximal measurement for ellapsed time
double | uTotalTime () const
| total user time
double | kTotalTime () const
| total Kernel time
double | eTotalTime () const
| total Elapsed time
double | totalTime () const
| total time
double | kMeanTime () const
| average Kernel Time
double | uMeanTime () const
| average User Time
double | eMeanTime () const
| average Elapsed Time
double | kRMSTime () const
| r.m.s Kernel Time
double | uRMSTime () const
| r.m.s User Time
double | eRMSTime () const
| r.m.s Elapsed Time
double | kMeanErrorTime () const
| error in mean Kernel time
double | uMeanErrorTime () const
| error in mean User time
double | eMeanErrorTime () const
| error in mean Elapsed time
bool | operator< (const ChronoEntity &entity) const
| comparison operator
std::string | outputUserTime () const
| print the chrono ;
std::string | outputSystemTime () const
| print the chrono ;
std::string | outputElapsedTime () const
| print the chrono ;
std::string | outputUserTime (const std::string &fmt, System::TimeType unit) const
| print the chrono according the format and units
std::string | outputSystemTime (const std::string &fmt, System::TimeType unit) const
| print the chrono according the format and units
std::string | outputElapsedTime (const std::string &fmt, System::TimeType unit) const
| print the chrono according the format and units
std::string | outputTime (IChronoSvc::ChronoType typ, const std::string &fmt, System::TimeType unit) const
| print the chrono according the format and units
## Protected Member Functions
std::string | format (const double total, const double minimal, const double mean, const double rms, const double maximal, const unsigned long number) const
| format
## Private Attributes
IChronoSvc::ChronoStatus | m_status
| current status of this chrono object;
IChronoSvc::ChronoTime | m_delta_user
| delta user time
IChronoSvc::ChronoTime | m_delta_kernel
| delta Kernel time
IChronoSvc::ChronoTime | m_delta_elapsed
| delta Elapsed time
IChronoSvc::ChronoTime | m_start_user
| start stamp for current measurement of user time
IChronoSvc::ChronoTime | m_start_kernel
| start stamp for current measurement of Kernel time
IChronoSvc::ChronoTime | m_start_elapsed
| start stamp for current measurement of Elapsed time
StatEntity | m_user
| the actual storage of "user" time
StatEntity | m_kernel
| the actual storage of "kernel" time
StatEntity | m_elapsed
| the actual storage of "elapsed" time

## Detailed Description

a small helper class for implementation of ChronoStatSvc service, It also could be used as some local timer

Author:
  Vanya BELYAEV Ivan.Belyaev@itep.ru

Date:
  December 1, 1999

Definition at line 23 of file ChronoEntity.h.

## Constructor & Destructor Documentation

ChronoEntity::ChronoEntity | ( |  | ) |

default constructor

current status of this chrono object;

Definition at line 50 of file ChronoEntity.cpp.

    00052   : m_status        ( IChronoSvc::UNKNOWN )  // current status
    00054   , m_delta_user    ( -1 ) // delta user time
    00056   , m_delta_kernel  ( -1 ) // delta kernel time
    00058   , m_delta_elapsed ( -1 ) // delta elapsed time
    00060   , m_start_user    (  0 ) // start for user
    00062   , m_start_kernel  (  0 ) // start for kernel
    00064   , m_start_elapsed (  0 ) // start for elapsed
    00065 {}

ChronoEntity::~ChronoEntity | ( |  | ) | `[inline]`

destructor

Definition at line 29 of file ChronoEntity.h.

    00029 {};

## Member Function Documentation

IChronoSvc::ChronoStatus ChronoEntity::start | ( |  | ) |

start the current chrono

Definition at line 74 of file ChronoEntity.cpp.

    00075 {
    00076   if ( IChronoSvc::RUNNING == m_status ) { return m_status ; }
    00077   //
    00078   // following lines could be platform dependent!
    00079   //
    00080   // Store in object the measured times
    00081   m_start_user    = static_cast<IChronoSvc::ChronoTime>(System::userTime     ( MyUnit ));
    00082   m_start_kernel  = static_cast<IChronoSvc::ChronoTime>(System::kernelTime   ( MyUnit ));
    00083   m_start_elapsed = static_cast<IChronoSvc::ChronoTime>(System::ellapsedTime ( MyUnit ));
    00085   m_status = IChronoSvc::RUNNING;
    00087   return m_status ;
    00088 }

IChronoSvc::ChronoStatus ChronoEntity::stop | ( |  | ) |

stop the chrono

Definition at line 96 of file ChronoEntity.cpp.

    00097 {
    00098   if ( IChronoSvc::RUNNING != m_status ) { return m_status ; }
    00099
    00100   // following lines could be platform dependent!
    00101
    00102   m_delta_user    = System::userTime     ( MyUnit ) - m_start_user    ;
    00103   m_delta_kernel  = System::kernelTime   ( MyUnit ) - m_start_kernel  ;
    00104   m_delta_elapsed = System::ellapsedTime ( MyUnit ) - m_start_elapsed ;
    00105
    00106   // update the counters:
    00107
    00108   m_user     += m_delta_user    ;
    00109   m_kernel   += m_delta_kernel  ;
    00110   m_elapsed  += m_delta_elapsed ;
    00111
    00112   // set new status
    00113
    00114   m_status = IChronoSvc::STOPPED;
    00115
    00116   return m_status ;
    00117 }

IChronoSvc::ChronoTime ChronoEntity::delta | ( | IChronoSvc::ChronoType | type | ) | const`[inline]`

return the last delta-time of type "type"

Definition at line 303 of file ChronoEntity.h.

    00304 {
    00305   const IChronoSvc::ChronoTime result = -1 ;
    00306   switch ( type )
    00307   {
    00308   case IChronoSvc::USER    : return m_delta_user    ;
    00309   case IChronoSvc::KERNEL  : return m_delta_kernel  ;
    00310   case IChronoSvc::ELAPSED : return m_delta_elapsed ;
    00311   default                  : return result          ;
    00312   }
    00313   // cannot reach this point
    00314 }

IChronoSvc::ChronoStatus ChronoEntity::status | ( |  | ) | const`[inline]`

return the status of chrono

Definition at line 197 of file ChronoEntity.h.

    00197 { return m_status; }

unsigned long ChronoEntity::nOfMeasurements | ( |  | ) | const`[inline]`

number of chrono measurements

Definition at line 202 of file ChronoEntity.h.

    00202 { return m_user   . nEntries() ; }

double ChronoEntity::uMinimalTime | ( |  | ) | const`[inline]`

minimal measurement for user time

Definition at line 206 of file ChronoEntity.h.

    00207 { return m_user   . flagMin () ; }

double ChronoEntity::kMinimalTime | ( |  | ) | const`[inline]`

minimal measurement for kernel time

Definition at line 212 of file ChronoEntity.h.

    00212 { return m_kernel . flagMin () ; }

double ChronoEntity::eMinimalTime | ( |  | ) | const`[inline]`

minimal measurement for ellapsed time

Definition at line 217 of file ChronoEntity.h.

    00217 { return m_elapsed. flagMin () ; }

double ChronoEntity::uMaximalTime | ( |  | ) | const`[inline]`

maximal measurement for user time

Definition at line 222 of file ChronoEntity.h.

    00222 { return m_user   . flagMax () ; }

double ChronoEntity::kMaximalTime | ( |  | ) | const`[inline]`

maximal measurement for kernel time

Definition at line 227 of file ChronoEntity.h.

    00227 { return m_kernel . flagMax () ; }

double ChronoEntity::eMaximalTime | ( |  | ) | const`[inline]`

maximal measurement for ellapsed time

Definition at line 232 of file ChronoEntity.h.

    00232 { return m_elapsed . flagMax () ; }

double ChronoEntity::uTotalTime | ( |  | ) | const`[inline]`

total user time

Definition at line 237 of file ChronoEntity.h.

    00237 { return m_user    . flag () ; }

double ChronoEntity::kTotalTime | ( |  | ) | const`[inline]`

total Kernel time

Definition at line 242 of file ChronoEntity.h.

    00242 { return m_kernel  . flag () ; }

double ChronoEntity::eTotalTime | ( |  | ) | const`[inline]`

total Elapsed time

Definition at line 247 of file ChronoEntity.h.

    00247 { return m_elapsed . flag () ; }

double ChronoEntity::totalTime | ( |  | ) | const`[inline]`

total time

Definition at line 252 of file ChronoEntity.h.

    00253 { return uTotalTime() + kTotalTime()  ; }

double ChronoEntity::kMeanTime | ( |  | ) | const`[inline]`

average Kernel Time

Definition at line 258 of file ChronoEntity.h.

    00258 { return m_kernel  . flagMean () ; }

double ChronoEntity::uMeanTime | ( |  | ) | const`[inline]`

average User Time

Definition at line 263 of file ChronoEntity.h.

    00263 { return m_user    . flagMean () ; }

double ChronoEntity::eMeanTime | ( |  | ) | const`[inline]`

average Elapsed Time

Definition at line 268 of file ChronoEntity.h.

    00268 { return m_elapsed . flagMean () ; }

double ChronoEntity::kRMSTime | ( |  | ) | const`[inline]`

r.m.s Kernel Time

Definition at line 273 of file ChronoEntity.h.

    00273 { return m_kernel  . flagRMS  () ; }

double ChronoEntity::uRMSTime | ( |  | ) | const`[inline]`

r.m.s User Time

Definition at line 278 of file ChronoEntity.h.

    00278 { return m_user    . flagRMS  () ; }

double ChronoEntity::eRMSTime | ( |  | ) | const`[inline]`

r.m.s Elapsed Time

Definition at line 283 of file ChronoEntity.h.

    00283 { return m_elapsed . flagRMS () ; }

double ChronoEntity::kMeanErrorTime | ( |  | ) | const`[inline]`

error in mean Kernel time

Definition at line 288 of file ChronoEntity.h.

    00288 { return m_kernel  . flagMeanErr () ; }

double ChronoEntity::uMeanErrorTime | ( |  | ) | const`[inline]`

error in mean User time

Definition at line 293 of file ChronoEntity.h.

    00293 { return m_user    . flagMeanErr () ; }

double ChronoEntity::eMeanErrorTime | ( |  | ) | const`[inline]`

error in mean Elapsed time

Definition at line 298 of file ChronoEntity.h.

    00298 { return m_elapsed . flagMeanErr () ; }

bool ChronoEntity::operator< | ( | const ChronoEntity & | entity | ) | const

comparison operator

Definition at line 249 of file ChronoEntity.cpp.

    00250 {
    00251   return
    00252     ( &e           == this          ) ? false :
    00253     ( totalTime () < e.totalTime () ) ? true  :
    00254     ( totalTime () > e.totalTime () ) ? false :
    00255     ( m_user       < e.m_user       ) ? true  :
    00256     ( e.m_user     <   m_user       ) ? false :
    00257     ( m_kernel     < e.m_kernel     ) ? true  :
    00258     ( e.m_kernel   <   m_kernel     ) ? false :
    00259     ( m_elapsed    < e.m_elapsed    ) ? true  :
    00260     ( e.m_elapsed  <   m_elapsed    ) ? false : false ;
    00261 }

std::string ChronoEntity::outputUserTime | ( |  | ) | const

print the chrono ;

Definition at line 121 of file ChronoEntity.cpp.

    00122 {
    00123   std::string res ("Time User   : ") ;
    00124   return res += format
    00125     ( uTotalTime     () ,
    00126       uMinimalTime   () ,
    00127       uMeanTime      () ,
    00128       uRMSTime       () ,
    00129       uMaximalTime   () ,
    00130       nOfMeasurements() );
    00131 }

std::string ChronoEntity::outputSystemTime | ( |  | ) | const

print the chrono ;

Definition at line 135 of file ChronoEntity.cpp.

    00136 {
    00137   std::string res ("Time System : ") ;
    00138   return res += format
    00139     ( kTotalTime     () ,
    00140       kMinimalTime   () ,
    00141                         kMeanTime      () ,
    00142                         kRMSTime       () ,
    00143                         kMaximalTime   () ,
    00144                         nOfMeasurements() );
    00145 }

std::string ChronoEntity::outputElapsedTime | ( |  | ) | const

print the chrono ;

Definition at line 148 of file ChronoEntity.cpp.

    00149 {
    00150   std::string res ("TimeElapsed: ") ;
    00151   return res += format
    00152     ( eTotalTime     () ,
    00153       eMinimalTime   () ,
    00154       eMeanTime      () ,
    00155       eRMSTime       () ,
    00156       eMaximalTime   () ,
    00157       nOfMeasurements() );
    00158 }

std::string ChronoEntity::outputUserTime | ( | const std::string & | fmt,
|  | System::TimeType | unit |
| ) |  |  | const`[inline]`

print the chrono according the format and units

Parameters:

  | fmt | the format string
  | unit | the unit

Returns:
  the string representations

See also:
  boost::format

Definition at line 325 of file ChronoEntity.h.

    00327 {
    00328   return outputTime ( IChronoSvc::USER , fmt , unit ) ;
    00329 }

std::string ChronoEntity::outputSystemTime | ( | const std::string & | fmt,
|  | System::TimeType | unit |
| ) |  |  | const`[inline]`

print the chrono according the format and units

Parameters:

  | fmt | the format string
  | unit | the unit

Returns:
  the string representations

See also:
  boost::format

Definition at line 340 of file ChronoEntity.h.

    00342 {
    00343   return outputTime ( IChronoSvc::KERNEL , fmt , unit ) ;
    00344 }

std::string ChronoEntity::outputElapsedTime | ( | const std::string & | fmt,
|  | System::TimeType | unit |
| ) |  |  | const`[inline]`

print the chrono according the format and units

Parameters:

  | fmt | the format string
  | unit | the unit

Returns:
  the string representations

See also:
  boost::format

Definition at line 355 of file ChronoEntity.h.

    00357 {
    00358   return outputTime ( IChronoSvc::ELAPSED , fmt , unit ) ;
    00359 }

std::string ChronoEntity::outputTime | ( | IChronoSvc::ChronoType | typ,
|  | const std::string & | fmt,
|  | System::TimeType | unit |
| ) |  |  | const

print the chrono according the format and units

The format fields are:

1. number of entries
2. total time (in the specified units)
3. mean time (in the specified units)
4. r.m.s. time (in the specified units)
5. error in mean time (in the specified units)
6. minimal time (in the specified units)
7. maximal time (in the specified units)

Parameters:

  | typ | the chrono type
  | fmt | the format string
  | unit | the unit

Returns:
  the string representations

See also:
  boost::format

Definition at line 272 of file ChronoEntity.cpp.

    00275 {
    00276   boost::format _fmt ( fmt ) ;
    00277   // allow various number of arguments
    00278   using namespace boost::io ;
    00279   _fmt.exceptions ( all_error_bits ^ ( too_many_args_bit | too_few_args_bit ) ) ;
    00280   //
    00281   double _unit = microsecond ;
    00282   switch ( unit )
    00283   {
    00284   case System::Year     : _unit = year        ; break ;
    00285   case System::Month    : _unit = month       ; break ;
    00286   case System::Day      : _unit = day         ; break ;
    00287   case System::Hour     : _unit = hour        ; break ;
    00288   case System::Min      : _unit = minute      ; break ;
    00289   case System::Sec      : _unit = second      ; break ;
    00290   case System::milliSec : _unit = millisecond ; break ;
    00291   case System::microSec : _unit = microsecond ; break ;
    00292   case System::nanoSec  : _unit = nanosecond  ; break ;
    00293   default               : _unit = microsecond ; break ;
    00294   }
    00295   //
    00296   const StatEntity* stat = &m_user;
    00297   switch ( typ )
    00298   {
    00299   case IChronoSvc::USER    : stat = &m_user    ; break ;
    00300   case IChronoSvc::KERNEL  : stat = &m_kernel  ; break ;
    00301   case IChronoSvc::ELAPSED : stat = &m_elapsed ; break ;
    00302   default                  : stat = &m_user    ; break ;
    00303   }
    00304   //
    00305   _fmt
    00306     %   ( stat -> nEntries    ()         )   // %1 : #entries
    00307     %   ( stat -> flag        () / _unit )   // %2 : total time
    00308     %   ( stat -> flagMean    () / _unit )   // %3 : mean time
    00309     %   ( stat -> flagRMS     () / _unit )   // %4 : RMS  time
    00310     %   ( stat -> flagMeanErr () / _unit )   // %5 : error in mean time
    00311     %   ( stat -> flagMin     () / _unit )   // %6 : minimal time
    00312     %   ( stat -> flagMax     () / _unit ) ; // %7 : maximal time
    00313   //
    00314   return _fmt.str() ;
    00315 }

std::string ChronoEntity::format | ( | const double | total,
|  | const double | minimal,
|  | const double | mean,
|  | const double | rms,
|  | const double | maximal,
|  | const unsigned long | number |
| ) |  |  | const`[protected]`

format

Definition at line 163 of file ChronoEntity.cpp.

    00169 {
    00171   const int buffer_size         = 256 ;
    00172   char      buffer[buffer_size]       ;
    00173   int       index               = 0   ;
    00175   long double  unit = 1.0 ;
    00176   std::string cunit = ""  ;
    00178   if     ( total / microsecond  <  500 )
    00179   { unit = microsecond ; cunit = " [us]"    ; }
    00180   else if( total / millisecond  <  500 )
    00181   { unit = millisecond ; cunit = " [ms]"    ; }
    00182   else if( total /      second  <  500 )
    00183   { unit =      second ; cunit = "  [s]"     ; }
    00184   else if( total /      minute  <  500 )
    00185   { unit =      minute ; cunit = "[min]"   ; }
    00186   else if( total /        hour  <  500 )
    00187     { unit =        hour ; cunit = "  [h]"     ; }
    00188   else if( total /         day  <   10 )
    00189   { unit =         day ; cunit = "[day]"   ; }
    00190   else if( total /        week  <    5 )
    00191   { unit =        week ; cunit = "  [w]"  ; }
    00192   else if( total /       month  <   20 )
    00193   { unit =       month ; cunit = "[mon]" ; }
    00194   else
    00195   { unit =        year ; cunit = "  [y]"  ; }
    00197   index += sprintf( buffer + index , "Tot=%5.3g" , (double) (total / unit) ) ;
    00198   index += sprintf( buffer + index , "%s" , cunit.c_str()          ) ;
    00200   if( 1 < number )
    00201   {
    00202
    00203     if     ( mean / microsecond  <  500 )
    00204     { unit = microsecond ; cunit = " [us]"    ; }
    00205     else if( mean / millisecond  <  500 )
    00206     { unit = millisecond ; cunit = " [ms]"    ; }
    00207     else if( mean /      second  <  500 )
    00208     { unit =      second ; cunit = "  [s]"     ; }
    00209     else if( mean /      minute  <  500 )
    00210     { unit =      minute ; cunit = "[min]"   ; }
    00211     else if( mean /        hour  <  500 )
    00212     { unit =        hour ; cunit = "  [h]"     ; }
    00213     else if( mean /         day  <   10 )
    00214     { unit =         day ; cunit = "[day]"   ; }
    00215     else if( mean /        week  <    5 )
    00216     { unit =        week ; cunit = "  [w]"  ; }
    00217     else if( mean /       month  <   20 )
    00218     { unit =       month ; cunit = "[mon]" ; }
    00219     else
    00220     { unit =        year ; cunit = "[year]"  ; }
    00222     index +=
    00223       sprintf( buffer + index ,
    00224                " Ave/Min/Max=%5.3g" , (double) ( mean / unit ) ) ;
    00225     index +=
    00226       sprintf( buffer + index ,
    00227                "(+-%5.3g)"          , (double) ( rms  / unit ) ) ;
    00228     index +=
    00229       sprintf( buffer + index ,
    00230                "/%5.3g"             , (double) ( minimal  / unit ) ) ;
    00231     index +=
    00232       sprintf( buffer + index ,
    00233                "/%5.3g"             , (double) ( maximal  / unit ) ) ;
    00235     index += sprintf( buffer + index , "%s" , cunit.c_str() );
    00237   }
    00238   else
    00239   { index += sprintf( buffer + index , "%44s" , " " ); }
    00241   index += sprintf( buffer + index , " #=%3lu" , number );
    00243   return std::string( buffer, 0 , index );
    00245 }

## Member Data Documentation

IChronoSvc::ChronoStatus ChronoEntity::m_status`[private]`

current status of this chrono object;

Definition at line 172 of file ChronoEntity.h.

IChronoSvc::ChronoTime ChronoEntity::m_delta_user`[private]`

delta user time

Definition at line 174 of file ChronoEntity.h.

IChronoSvc::ChronoTime ChronoEntity::m_delta_kernel`[private]`

delta Kernel time

Definition at line 176 of file ChronoEntity.h.

IChronoSvc::ChronoTime ChronoEntity::m_delta_elapsed`[private]`

delta Elapsed time

Definition at line 178 of file ChronoEntity.h.

IChronoSvc::ChronoTime ChronoEntity::m_start_user`[private]`

start stamp for current measurement of user time

Definition at line 180 of file ChronoEntity.h.

IChronoSvc::ChronoTime ChronoEntity::m_start_kernel`[private]`

start stamp for current measurement of Kernel time

Definition at line 182 of file ChronoEntity.h.

IChronoSvc::ChronoTime ChronoEntity::m_start_elapsed`[private]`

start stamp for current measurement of Elapsed time

Definition at line 184 of file ChronoEntity.h.

StatEntity ChronoEntity::m_user`[private]`

the actual storage of "user" time

Definition at line 186 of file ChronoEntity.h.

StatEntity ChronoEntity::m_kernel`[private]`

the actual storage of "kernel" time

Definition at line 188 of file ChronoEntity.h.

StatEntity ChronoEntity::m_elapsed`[private]`

the actual storage of "elapsed" time

Definition at line 190 of file ChronoEntity.h.

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r11/GaudiKernel/GaudiKernel/ChronoEntity.h
- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r11/GaudiKernel/src/Lib/ChronoEntity.cpp