class TStopwatch: public TObject


TStopwatch

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

Function Members (Methods)

public:

virtual	~TStopwatch()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	TObject::Clear(Option_t* = "")
virtual TObject*	TObject::Clone(const char* newname = "") const
virtual Int_t	TObject::Compare(const TObject* obj) const
void	Continue()
virtual void	TObject::Copy(TObject& object) const
Int_t	Counter() const
Double_t	CpuTime()
virtual void	TObject::Delete(Option_t* option = "")MENU
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::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_t	TObject::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_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
virtual const char*	TObject::GetTitle() const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TObject::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TObject::IsSortable() const
Bool_t	TObject::IsZombie() const
virtual void	TObject::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
virtual Bool_t	TObject::Notify()
void	TObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
void	TObject::operator delete(void* ptr)
void	TObject::operator delete(void* ptr, void* vp)
void	TObject::operator delete[](void* ptr)
void	TObject::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&)
TStopwatch&	operator=(TStopwatch&&)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	Print(Option_t* option = "") const
virtual Int_t	TObject::Read(const char* name)
Double_t	RealTime()
virtual void	TObject::RecursiveRemove(TObject* obj)
void	Reset()
void	TObject::ResetBit(UInt_t f)
void	ResetCpuTime(Double_t time = 0)
void	ResetRealTime(Double_t time = 0)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TObject::SavePrimitive(ostream& out, Option_t* option = "")
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector& insp) const
void	Start(Bool_t reset = kTRUE)
void	Stop()
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
	TStopwatch()
	TStopwatch(TStopwatch&&)
	TStopwatch(const TStopwatch&)
virtual void	TObject::UseCurrentStyle()
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const

protected:

virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
void	TObject::MakeZombie()

private:

static Double_t	GetCPUTime()
static Double_t	GetRealTime()

Data Members

public:

static TObject::(anonymous)	TObject::kBitMask
static TObject::EStatusBits	TObject::kCanDelete
static TObject::EStatusBits	TObject::kCannotPick
static TObject::EStatusBits	TObject::kHasUUID
static TObject::EStatusBits	TObject::kInvalidObject
static TObject::(anonymous)	TObject::kIsOnHeap
static TObject::EStatusBits	TObject::kIsReferenced
static TObject::EStatusBits	TObject::kMustCleanup
static TObject::EStatusBits	TObject::kNoContextMenu
static TObject::(anonymous)	TObject::kNotDeleted
static TObject::EStatusBits	TObject::kObjInCanvas
static TObject::(anonymous)	TObject::kOverwrite
static TObject::(anonymous)	TObject::kSingleKey
static TObject::(anonymous)	TObject::kWriteDelete
static TObject::(anonymous)	TObject::kZombie

private:

Int_t	fCounter	number of times the stopwatch was started
Double_t	fStartCpuTime	cpu start time
Double_t	fStartRealTime	wall clock start time
TStopwatch::EState	fState	stopwatch state
Double_t	fStopCpuTime	cpu stop time
Double_t	fStopRealTime	wall clock stop time
Double_t	fTotalCpuTime	total cpu time
Double_t	fTotalRealTime	total real time
static TStopwatch::EState	kRunning
static TStopwatch::EState	kStopped
static TStopwatch::EState	kUndefined

Class Charts

Inheritance Chart:

TObject

←

TStopwatch

←

TMVA::Timer

Function documentation

TStopwatch()

 Create a stopwatch and start it.

void Start(Bool_t reset = kTRUE)

 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()

 Stop the stopwatch (if it is running) and return the realtime (in
 seconds) passed between the start and stop events.

Double_t CpuTime()

 Stop the stopwatch (if it is running) and return the cputime (in
 seconds) passed between the start and stop events.

Double_t GetRealTime()

 Private static method returning system realtime.

Double_t GetCPUTime()

 Private static method returning system CPU time.

void Print(Option_t* option = "") const

 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.

TStopwatch()

Int_t Counter() const

{ return fCounter; }

void Reset()

{ ResetCpuTime(); ResetRealTime(); }

void ResetCpuTime(Double_t time = 0)

{ Stop(); fTotalCpuTime = time; }

void ResetRealTime(Double_t time = 0)

{ Stop(); fTotalRealTime = time; }