library: libCore
#include "TStopwatch.h"


class description - header file - source file
viewCVS header - viewCVS source

class TStopwatch: public TObject

Inheritance Inherited Members Includes Libraries
Class Charts

Function Members (Methods)

Display options:
Show inherited
Show non-public
TStopwatch(const TStopwatch&)
voidTObject::AbstractMethod(const char* method) const
virtual voidTObject::AppendPad(Option_t* option = "")
virtual voidTObject::Browse(TBrowser* b)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTObject::Clear(Option_t* = "")
virtual TObject*TObject::Clone(const char* newname = "") const
virtual Int_tTObject::Compare(const TObject* obj) const
virtual voidTObject::Copy(TObject& object) const
Int_tCounter() const
virtual voidTObject::Delete(Option_t* option = "")
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTObject::Draw(Option_t* option = "")
virtual voidTObject::DrawClass() const
virtual TObject*TObject::DrawClone(Option_t* option = "") const
virtual voidTObject::Dump() const
virtual voidTObject::Error(const char* method, const char* msgfmt) const
virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual voidTObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual voidTObject::Fatal(const char* method, const char* msgfmt) const
virtual TObject*TObject::FindObject(const char* name) const
virtual TObject*TObject::FindObject(const TObject* obj) const
virtual Option_t*TObject::GetDrawOption() const
static Long_tTObject::GetDtorOnly()
virtual const char*TObject::GetIconName() const
virtual const char*TObject::GetName() const
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual Option_t*TObject::GetOption() const
virtual const char*TObject::GetTitle() const
virtual UInt_tTObject::GetUniqueID() const
virtual Bool_tTObject::HandleTimer(TTimer* timer)
virtual ULong_tTObject::Hash() const
virtual voidTObject::Info(const char* method, const char* msgfmt) const
virtual Bool_tTObject::InheritsFrom(const char* classname) const
virtual Bool_tTObject::InheritsFrom(const TClass* cl) const
virtual voidTObject::Inspect() const
voidTObject::InvertBit(UInt_t f)
virtual TClass*IsA() const
virtual Bool_tTObject::IsEqual(const TObject* obj) const
virtual Bool_tTObject::IsFolder() const
Bool_tTObject::IsOnHeap() const
virtual Bool_tTObject::IsSortable() const
Bool_tTObject::IsZombie() const
virtual voidTObject::ls(Option_t* option = "") const
voidTObject::MayNotUse(const char* method) const
virtual Bool_tTObject::Notify()
static voidTObject::operator delete(void* ptr)
static voidTObject::operator delete(void* ptr, void* vp)
static voidTObject::operator delete[](void* ptr)
static voidTObject::operator delete[](void* ptr, void* vp)
void*TObject::operator new(size_t sz)
void*TObject::operator new(size_t sz, void* vp)
void*TObject::operator new[](size_t sz)
void*TObject::operator new[](size_t sz, void* vp)
TStopwatch&operator=(const TStopwatch&)
virtual voidTObject::Paint(Option_t* option = "")
virtual voidTObject::Pop()
virtual voidPrint(Option_t* option = "") const
virtual Int_tTObject::Read(const char* name)
virtual voidTObject::RecursiveRemove(TObject* obj)
voidTObject::ResetBit(UInt_t f)
voidResetCpuTime(Double_t time = 0)
voidResetRealTime(Double_t time = 0)
virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") const
virtual voidTObject::SavePrimitive(ostream& out, Option_t* option = "")
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual voidTObject::SetDrawOption(Option_t* option = "")
static voidTObject::SetDtorOnly(void* obj)
static voidTObject::SetObjectStat(Bool_t stat)
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidShowMembers(TMemberInspector& insp, char* parent)
voidStart(Bool_t reset = kTRUE)
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
virtual voidTObject::UseCurrentStyle()
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual Int_tTObject::Write(const char* name = "0", Int_t option = 0, Int_t bufsize = 0)
virtual Int_tTObject::Write(const char* name = "0", Int_t option = 0, Int_t bufsize = 0) const
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
static Double_tGetCPUTime()
static Double_tGetRealTime()

Data Members

enum EState { kUndefined
enum TObject::EStatusBits { kCanDelete
enum TObject::[unnamed] { kIsOnHeap
Double_tfStartRealTimewall clock start time
Double_tfStopRealTimewall clock stop time
Double_tfStartCpuTimecpu start time
Double_tfStopCpuTimecpu stop time
Double_tfTotalCpuTimetotal cpu time
Double_tfTotalRealTimetotal real time
TStopwatch::EStatefStatestopwatch state
Int_tfCounternumber of times the stopwatch was started

Class Description

 Stopwatch class. This class returns the real and cpu time between    
 the start and stop events.                                           

 Create a stopwatch and start it.
void Start(Bool_t reset)
 Start the stopwatch. If reset is kTRUE reset the stopwatch before
 starting it (including the stopwatch counter).
 Use kFALSE to continue timing after a Stop() without
 resetting the stopwatch.
void Stop()
 Stop the stopwatch.
void Continue()
 Resume a stopped stopwatch. The stopwatch continues counting from the last
 Start() onwards (this is like the laptimer function).
Double_t RealTime()
 Return the realtime passed between the start and stop events. If the
 stopwatch was still running stop it first.
Double_t CpuTime()
 Return the cputime passed between the start and stop events. If the
 stopwatch was still running stop it first.
Double_t GetRealTime()
 Private static method returning system realtime.
Double_t GetCPUTime()
 Private static method returning system CPU time.
void Print(Option_t *opt)
 Print the real and cpu time passed between the start and stop events.
 and the number of times (slices) this TStopwatch was called
 (if this number > 1). If opt="m" print out realtime in milli second
 precision. If opt="u" print out realtime in micro second precision.
Int_t Counter()
{ return fCounter; }
void Reset()
{ ResetCpuTime(); ResetRealTime(); }
void ResetCpuTime(Double_t time = 0)
{ Stop(); fTotalCpuTime = time; }
void ResetRealTime(Double_t time = 0)
{ Stop(); fTotalRealTime = time; }

Author: Fons Rademakers 11/10/95
Last update: root/base:$Name: $:$Id: TStopwatch.cxx,v 1.13 2006/05/18 10:46:26 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *

ROOT page - Class index - Class Hierarchy - Top of the page

This page has been automatically generated. If you have any comments or suggestions about the page layout send a mail to ROOT support, or contact the developers with any questions or problems regarding ROOT.