The packetizer is a load balancing object created for each query.
It generates packets to be processed on PROOF worker servers. A packet is an event range (begin entry and number of entries) or object range (first object and number of objects) in a TTree (entries) or a directory (objects) in a file. Packets are generated taking into account the performance of the remote machine, the time it took to process a previous packet on the remote machine, the locality of the database files, etc.
TVirtualPacketizer includes common parts of PROOF packetizers. Look in subclasses for details. The default packetizer is TPacketizerAdaptive (TPacketizer for Proof-Lite). To use an alternative one, for instance - the TPacketizer, call: proof->SetParameter("PROOF_Packetizer", "TPacketizer");
Definition at line 53 of file TVirtualPacketizer.h.
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| virtual | ~TVirtualPacketizer () |
| | Destructor. More...
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| virtual Int_t | AddProcessed (TSlave *, TProofProgressStatus *, Double_t, TList **) |
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| virtual Int_t | AddWorkers (TList *workers) |
| | Adds new workers. More...
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| virtual Int_t | AssignWork (TDSet *, Long64_t, Long64_t) |
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| virtual Int_t | GetActiveWorkers () |
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| Long64_t | GetBytesRead () const |
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| TList * | GetConfigParams (Bool_t steal=kFALSE) |
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| Double_t | GetCumProcTime () const |
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| virtual Float_t | GetCurrentRate (Bool_t &all) |
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| Long64_t | GetEntriesProcessed () const |
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| virtual Int_t | GetEstEntriesProcessed (Float_t, Long64_t &ent, Long64_t &bytes, Long64_t &calls) |
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| TList * | GetFailedPackets () |
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| Float_t | GetInitTime () const |
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| virtual TDSetElement * | GetNextPacket (TSlave *sl, TMessage *r) |
| | Get next packet. More...
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| Float_t | GetProcTime () const |
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| TNtuple * | GetProgressPerf (Bool_t steal=kFALSE) |
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| Long64_t | GetReadCalls () const |
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| TMap * | GetSlaveStats () const |
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| TProofProgressStatus * | GetStatus () |
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| Long64_t | GetTotalEntries () const |
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| Bool_t | IsValid () const |
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| virtual void | MarkBad (TSlave *, TProofProgressStatus *, TList **) |
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| void | SetFailedPackets (TList *list) |
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| virtual void | SetInitTime () |
| | Set the initialization time. More...
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| void | SetProgressStatus (TProofProgressStatus *st) |
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| void | SetTotalEntries (Long64_t ent) |
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| virtual void | StopProcess (Bool_t abort, Bool_t stoptimer=kFALSE) |
| | Stop process. More...
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| | TObject () |
| | TObject constructor. More...
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| | TObject (const TObject &object) |
| | TObject copy ctor. More...
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| virtual | ~TObject () |
| | TObject destructor. More...
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| void | AbstractMethod (const char *method) const |
| | Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
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| virtual void | AppendPad (Option_t *option="") |
| | Append graphics object to current pad. More...
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| virtual void | Browse (TBrowser *b) |
| | Browse object. May be overridden for another default action. More...
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| 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. More...
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| virtual const char * | ClassName () const |
| | Returns name of class to which the object belongs. More...
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| virtual void | Clear (Option_t *="") |
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| virtual TObject * | Clone (const char *newname="") const |
| | Make a clone of an object using the Streamer facility. More...
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| virtual Int_t | Compare (const TObject *obj) const |
| | Compare abstract method. More...
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| virtual void | Copy (TObject &object) const |
| | Copy this to obj. More...
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| virtual void | Delete (Option_t *option="") |
| | Delete this object. More...
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| virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
| | Computes distance from point (px,py) to the object. More...
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| virtual void | Draw (Option_t *option="") |
| | Default Draw method for all objects. More...
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| virtual void | DrawClass () const |
| | Draw class inheritance tree of the class to which this object belongs. More...
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| virtual TObject * | DrawClone (Option_t *option="") const |
| | Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
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| virtual void | Dump () const |
| | Dump contents of object on stdout. More...
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| virtual void | Error (const char *method, const char *msgfmt,...) const |
| | Issue error message. More...
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| 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. More...
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| virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=0) |
| | Execute method on this object with parameters stored in the TObjArray. More...
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| virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
| | Execute action corresponding to an event at (px,py). More...
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| virtual void | Fatal (const char *method, const char *msgfmt,...) const |
| | Issue fatal error message. More...
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| virtual TObject * | FindObject (const char *name) const |
| | Must be redefined in derived classes. More...
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| virtual TObject * | FindObject (const TObject *obj) const |
| | Must be redefined in derived classes. More...
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| virtual Option_t * | GetDrawOption () const |
| | Get option used by the graphics system to draw this object. More...
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| virtual const char * | GetIconName () const |
| | Returns mime type name of object. More...
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| virtual const char * | GetName () const |
| | Returns name of object. More...
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| virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
| | Returns string containing info about the object at position (px,py). More...
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| virtual Option_t * | GetOption () const |
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| virtual const char * | GetTitle () const |
| | Returns title of object. More...
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| virtual UInt_t | GetUniqueID () const |
| | Return the unique object id. More...
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| virtual Bool_t | HandleTimer (TTimer *timer) |
| | Execute action in response of a timer timing out. More...
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| virtual ULong_t | Hash () const |
| | Return hash value for this object. More...
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| 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. More...
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| virtual void | Info (const char *method, const char *msgfmt,...) const |
| | Issue info message. More...
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| virtual Bool_t | InheritsFrom (const char *classname) const |
| | Returns kTRUE if object inherits from class "classname". More...
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| virtual Bool_t | InheritsFrom (const TClass *cl) const |
| | Returns kTRUE if object inherits from TClass cl. More...
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| virtual void | Inspect () const |
| | Dump contents of this object in a graphics canvas. More...
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| void | InvertBit (UInt_t f) |
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| virtual Bool_t | IsEqual (const TObject *obj) const |
| | Default equal comparison (objects are equal if they have the same address in memory). More...
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| virtual Bool_t | IsFolder () const |
| | Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
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| R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
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| virtual Bool_t | IsSortable () const |
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| R__ALWAYS_INLINE Bool_t | IsZombie () const |
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| virtual void | ls (Option_t *option="") const |
| | The ls function lists the contents of a class on stdout. More...
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| 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). More...
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| virtual Bool_t | Notify () |
| | This method must be overridden to handle object notification. More...
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| void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
| | Use this method to declare a method obsolete. More...
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| void | operator delete (void *ptr) |
| | Operator delete. More...
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| void | operator delete[] (void *ptr) |
| | Operator delete []. More...
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| void * | operator new (size_t sz) |
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| void * | operator new (size_t sz, void *vp) |
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| void * | operator new[] (size_t sz) |
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| void * | operator new[] (size_t sz, void *vp) |
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| TObject & | operator= (const TObject &rhs) |
| | TObject assignment operator. More...
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| virtual void | Paint (Option_t *option="") |
| | This method must be overridden if a class wants to paint itself. More...
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| virtual void | Pop () |
| | Pop on object drawn in a pad to the top of the display list. More...
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| virtual void | Print (Option_t *option="") const |
| | This method must be overridden when a class wants to print itself. More...
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| virtual Int_t | Read (const char *name) |
| | Read contents of object with specified name from the current directory. More...
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| virtual void | RecursiveRemove (TObject *obj) |
| | Recursively remove this object from a list. More...
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| void | ResetBit (UInt_t f) |
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| virtual void | SaveAs (const char *filename="", Option_t *option="") const |
| | Save this object in the file specified by filename. More...
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| virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
| | Save a primitive as a C++ statement(s) on output stream "out". More...
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| void | SetBit (UInt_t f) |
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| void | SetBit (UInt_t f, Bool_t set) |
| | Set or unset the user status bits as specified in f. More...
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| virtual void | SetDrawOption (Option_t *option="") |
| | Set drawing option for object. More...
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| virtual void | SetUniqueID (UInt_t uid) |
| | Set the unique object id. More...
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| virtual void | SysError (const char *method, const char *msgfmt,...) const |
| | Issue system error message. More...
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| R__ALWAYS_INLINE Bool_t | TestBit (UInt_t f) const |
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| Int_t | TestBits (UInt_t f) const |
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| virtual void | UseCurrentStyle () |
| | Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
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| virtual void | Warning (const char *method, const char *msgfmt,...) const |
| | Issue warning message. More...
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| virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
| | Write this object to the current directory. More...
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| virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
| | Write this object to the current directory. More...
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Public Types inherited from TObject
