This class is a ROOT utility to help benchmarking applications.

Definition at line 29 of file TBenchmark.h.

Public Member Functions
	TBenchmark ()
	Benchmark default constructor.

virtual	~TBenchmark ()
	Benchmark destructor.

Int_t	GetBench (const char *name) const
	Returns index of Benchmark name.

Float_t	GetCpuTime (const char *name)
	Returns Cpu time used by Benchmark name.

Float_t	GetRealTime (const char *name)
	Returns Realtime used by Benchmark name.

virtual void	Print (Option_t *name="") const
	Prints parameters of Benchmark name.

virtual void	Reset ()
	Reset all Benchmarks.

virtual void	Show (const char *name)
	Stops Benchmark name and Prints results.

virtual void	Start (const char *name)
	Starts Benchmark with the specified name.

virtual void	Stop (const char *name)
	Terminates Benchmark with specified name.

virtual void	Summary (Float_t &rt, Float_t &cp)
	Prints a summary of all benchmarks.

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TNamed &named)
	TNamed copy ctor.

	TNamed (const TString &name, const TString &title)

virtual	~TNamed ()
	TNamed destructor.

virtual void	Clear (Option_t *option="")
	Set name and title to empty strings ("").

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.

virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects.

virtual void	Copy (TObject &named) const
	Copy this to obj.

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.

virtual const char *	GetName () const
	Returns name of object.

virtual const char *	GetTitle () const
	Returns title of object.

virtual ULong_t	Hash () const
	Return hash value for this object.

virtual Bool_t	IsSortable () const

virtual void	ls (Option_t *option="") const
	List TNamed name and title.

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator.

virtual void	SetName (const char *name)
	Set the name of the TNamed.

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title).

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed.

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual void	Delete (Option_t *option="")
	Delete this object.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification.

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete[] (void *ptr)
	Operator delete [].

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Protected Member Functions
	TBenchmark (const TBenchmark &)
	Copy constructor.

TBenchmark &	operator= (const TBenchmark &)
	Assignment operator.

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

Protected Attributes
Float_t *	fCpuTime

TString *	fNames

Int_t	fNbench

Int_t	fNmax

Float_t *	fRealTime

TStopwatch *	fTimer

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Additional Inherited Members
Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }

enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

enum	EStatusBits { kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) , kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

#include <TBenchmark.h>

Inheritance diagram for TBenchmark:

[legend]

Constructor & Destructor Documentation

◆ TBenchmark() [1/2]

TBenchmark::TBenchmark ( const TBenchmark & bm )

protected

Copy constructor.

Definition at line 39 of file TBenchmark.cxx.

◆ TBenchmark() [2/2]

TBenchmark::TBenchmark ( )

Benchmark default constructor.

Definition at line 26 of file TBenchmark.cxx.

◆ ~TBenchmark()

TBenchmark::~TBenchmark ( )

virtual

Benchmark destructor.

Definition at line 94 of file TBenchmark.cxx.

Member Function Documentation

◆ GetBench()

Int_t TBenchmark::GetBench ( const char * name ) const

Returns index of Benchmark name.

Definition at line 106 of file TBenchmark.cxx.

◆ GetCpuTime()

Float_t TBenchmark::GetCpuTime ( const char * name )

Returns Cpu time used by Benchmark name.

Definition at line 117 of file TBenchmark.cxx.

◆ GetRealTime()

Float_t TBenchmark::GetRealTime ( const char * name )

Returns Realtime used by Benchmark name.

Definition at line 127 of file TBenchmark.cxx.

◆ operator=()

TBenchmark & TBenchmark::operator= ( const TBenchmark & bm )

protected

Assignment operator.

Definition at line 64 of file TBenchmark.cxx.

◆ Print()

void TBenchmark::Print ( Option_t * name = "" ) const

virtual

Prints parameters of Benchmark name.

Reimplemented from TNamed.

Definition at line 137 of file TBenchmark.cxx.

◆ Reset()

void TBenchmark::Reset ( )

virtual

Reset all Benchmarks.

Definition at line 147 of file TBenchmark.cxx.

◆ Show()

void TBenchmark::Show ( const char * name )

virtual

Stops Benchmark name and Prints results.

Definition at line 155 of file TBenchmark.cxx.

◆ Start()

void TBenchmark::Start ( const char * name )

virtual

Starts Benchmark with the specified name.

An independent timer (see class TStopwatch) is started. The name of the benchmark is entered into the list of benchmarks. Benchmark can be stopped via TBenchmark::Stop(). Results can be printed via TBenchmark::Print(). TBenchmark::Show() can be used to stop benchmark and print results. If name is an already existing benchmark, timing will resume. A summary of all benchmarks can be seen via TBenchmark::Summary().

Definition at line 172 of file TBenchmark.cxx.

◆ Stop()

void TBenchmark::Stop ( const char * name )

virtual

Terminates Benchmark with specified name.

Definition at line 201 of file TBenchmark.cxx.

◆ Summary()

void TBenchmark::Summary	(	Float_t &	rt,
		Float_t &	cp
	)

virtual

Prints a summary of all benchmarks.

Definition at line 214 of file TBenchmark.cxx.

Member Data Documentation

◆ fCpuTime

Float_t* TBenchmark::fCpuTime

protected

Definition at line 37 of file TBenchmark.h.

◆ fNames

TString* TBenchmark::fNames

protected

Definition at line 35 of file TBenchmark.h.

◆ fNbench

Int_t TBenchmark::fNbench

protected

Definition at line 33 of file TBenchmark.h.

◆ fNmax

Int_t TBenchmark::fNmax

protected

Definition at line 34 of file TBenchmark.h.

◆ fRealTime

Float_t* TBenchmark::fRealTime

protected

Definition at line 36 of file TBenchmark.h.

◆ fTimer

TStopwatch* TBenchmark::fTimer

protected

Definition at line 38 of file TBenchmark.h.

core/base/inc/TBenchmark.h

core/base/src/TBenchmark.cxx

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TBenchmark() [1/2]

◆ TBenchmark() [2/2]

◆ ~TBenchmark()

Member Function Documentation

◆ GetBench()

◆ GetCpuTime()

◆ GetRealTime()

◆ operator=()

◆ Print()

◆ Reset()

◆ Show()

◆ Start()

◆ Stop()

◆ Summary()

Member Data Documentation

◆ fCpuTime

◆ fNames

◆ fNbench

◆ fNmax

◆ fRealTime

◆ fTimer