[ROOT] Re: TFile and TTree size (PR#1054)

From: Andrei Martemianov (Andrey.Martemianov@lngs.infn.it)
Date: Wed Aug 29 2001 - 18:21:53 MEST
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Rene Burn wrote:
> 
> Hi Andrey,
> 
> Could you give a few more details ?
> Could you send me the result of tree.Print() ?
> Are you storing only one event per Tree ?
> 
> Rene Brun

	Hi Rene.

Unfortunately may be mail was truncated so I just briefly send 
statistics from Tree::Print for both BrancStyle styles.

******************************************************************************
*Tree    :T         : An example of a ROOT
tree                              *
*Entries :     2615 : Total =          260520 bytes  File  Size =     
37898 *
*        :          : Tree compression factor = 
18.70                       *
******************************************************************************
*Branch  :dejtonevent :
dejtonevent                                            *
*Entries :     2615 : BranchObject (see
below)                               *
*............................................................................*
*Br    0 :fEventNumber
:                                                     *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br    1 :fCondition
:                                                       *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br    2 :fMultiplicity
:                                                    *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br    3 :fAlfa    
:                                                        *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br    4 :fAstrEvtTime
:                                                     *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br    5 :fGroupes_ :
fGroupes_/I                                            *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br    6 :fGroupes.fGr :
fGr[fGroupes_]/b                                    *
*Entries :     2615 : Total  Size=       8962 bytes  File Size  =      
4688 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
1.91     *
*............................................................................*
*Br    7 :fAmplitudes_ :
fAmplitudes_/I                                      *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br    8 :fAmplitudes.fAmp :
fAmp[fAmplitudes_]/b                            *
*Entries :     2615 : Total  Size=       8944 bytes  File Size  =      
4546 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
1.97     *
*............................................................................*
*Br    9 :fWindowTimes_ :
fWindowTimes_/I                                    *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br   10 :fWindowTimes.fWint :
fWint[fWindowTimes_]/s                        *
*Entries :     2615 : Total  Size=       8120 bytes  File Size  =
354 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
22.94     *
*............................................................................*
*Br   11 :fRunInfo_ :
fRunInfo_/I                                            *
*Entries :     2615 : Total  Size=          0 bytes  File Size 
=          0 *
*Baskets :        0 : Basket Size=      16000 bytes  Compression=  
1.00     *
*............................................................................*
*Br   12 :fRunInfo.fBDate :
fBDate[fRunInfo_]/F                              *
*Entries :     2615 : Total  Size=       8047 bytes  File Size  =
117 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
68.78     *
*............................................................................*
*Br   13 :fRunInfo.fBTime :
fBTime[fRunInfo_]/F                              *
*Entries :     2615 : Total  Size=       8047 bytes  File Size  =
117 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
68.78     *
*............................................................................*
*Br   14 :fRunInfo.fEDate :
fEDate[fRunInfo_]/F                              *
*Entries :     2615 : Total  Size=       8047 bytes  File Size  =
117 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
68.78     *
*............................................................................*
*Br   15 :fRunInfo.fETime :
fETime[fRunInfo_]/F                              *
*Entries :     2615 : Total  Size=       8047 bytes  File Size  =
117 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
68.78     *
*............................................................................*
*Br   16 :fRunInfo.fTl :
fTl[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
116 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.34     *
*............................................................................*
*Br   17 :fRunInfo.fTa :
fTa[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
116 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.34     *
*............................................................................*
*Br   18 :fRunInfo.fPwr :
fPwr[fRunInfo_]/F                                  *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   19 :fRunInfo.fSTot :
fSTot[fRunInfo_]/i                                *
*Entries :     2615 : Total  Size=       8046 bytes  File Size  =
116 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.36     *
*............................................................................*
*Br   20 :fRunInfo.fSErr :
fSErr[fRunInfo_]/i                                *
*Entries :     2615 : Total  Size=       8046 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.97     *
*............................................................................*
*Br   21 :fRunInfo.fS1 :
fS1[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.95     *
*............................................................................*
*Br   22 :fRunInfo.fS2 :
fS2[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
114 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
70.56     *
*............................................................................*
*Br   23 :fRunInfo.fSMlt :
fSMlt[fRunInfo_]/i                                *
*Entries :     2615 : Total  Size=       8046 bytes  File Size  =
116 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.36     *
*............................................................................*
*Br   24 :fRunInfo.fS3 :
fS3[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
114 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
70.56     *
*............................................................................*
*Br   25 :fRunInfo.fS4 :
fS4[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   26 :fRunInfo.fS5 :
fS5[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   27 :fRunInfo.fS6 :
fS6[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
114 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
70.56     *
*............................................................................*
*Br   28 :fRunInfo.fS7 :
fS7[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   29 :fRunInfo.fS8 :
fS8[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   30 :fRunInfo.fS9 :
fS9[fRunInfo_]/i                                    *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
114 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
70.56     *
*............................................................................*
*Br   31 :fRunInfo.fS10 :
fS10[fRunInfo_]/i                                  *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   32 :fRunInfo.fS11 :
fS11[fRunInfo_]/i                                  *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   33 :fRunInfo.fS12 :
fS12[fRunInfo_]/i                                  *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   34 :fRunInfo.fS13 :
fS13[fRunInfo_]/i                                  *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   35 :fRunInfo.fS14 :
fS14[fRunInfo_]/i                                  *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   36 :fRunInfo.fS15 :
fS15[fRunInfo_]/i                                  *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   37 :fRunInfo.fS16 :
fS16[fRunInfo_]/i                                  *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*

When  I did DejtonEvent 3 3 I have 92471 Bytes one on the disk with
next
info.

******************************************************************************
*Tree    :T         : An example of a ROOT
tree                              *
*Entries :     2615 : Total =          360963 bytes  File  Size =     
82812 *
*        :          : Tree compression factor =  
6.92                       *
******************************************************************************
*Branch 
:dejtonevent                                                        *
*Entries :     2615 : BranchElement (see
below)                              *
*............................................................................*
*Br    0 :fEventNumber
:                                                     *
*Entries :     2615 : Total  Size=      10700 bytes  File Size  =      
5196 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
2.06     *
*............................................................................*
*Br    1 :fCondition
:                                                       *
*Entries :     2615 : Total  Size=       8929 bytes  File Size  =      
3790 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
2.36     *
*............................................................................*
*Br    2 :fMultiplicity
:                                                    *
*Entries :     2615 : Total  Size=       8927 bytes  File Size  =      
3427 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
2.60     *
*............................................................................*
*Br    3 :fAlfa    
:                                                        *
*Entries :     2615 : Total  Size=       8924 bytes  File Size  =      
5221 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
1.71     *
*............................................................................*
*Br    4 :fAstrEvtTime
:                                                     *
*Entries :     2615 : Total  Size=       9634 bytes  File Size  =      
6568 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
1.47     *
*............................................................................*
*Br    5 :fGroupes  :
fGroupes_                                              *
*Entries :     2615 : Total  Size=      10696 bytes  File Size  =      
2581 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
4.14     *
*............................................................................*
*Br    6 :fGroupes.fGr :
fGr[fGroupes_]                                      *
*Entries :     2615 : Total  Size=       8962 bytes  File Size  =      
4688 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
1.91     *
*............................................................................*
*Br    7 :fAmplitudes :
fAmplitudes_                                         *
*Entries :     2615 : Total  Size=      10699 bytes  File Size  =      
2556 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
4.19     *
*............................................................................*
*Br    8 :fAmplitudes.fAmp :
fAmp[fAmplitudes_]                              *
*Entries :     2615 : Total  Size=       8944 bytes  File Size  =      
4547 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
1.97     *
*............................................................................*
*Br    9 :fWindowTimes :
fWindowTimes_                                       *
*Entries :     2615 : Total  Size=      10700 bytes  File Size  =      
2593 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
4.13     *
*............................................................................*
*Br   10 :fWindowTimes.fWint :
fWint[fWindowTimes_]                          *
*Entries :     2615 : Total  Size=       8120 bytes  File Size  =
354 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
22.94     *
*............................................................................*
*Br   11 :fRunInfo  :
fRunInfo_                                              *
*Entries :     2615 : Total  Size=      10696 bytes  File Size  =      
2443 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression=  
4.38     *
*............................................................................*
*Br   12 :fRunInfo.fBDate :
fBDate[fRunInfo_]                                *
*Entries :     2615 : Total  Size=       8047 bytes  File Size  =
117 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
68.78     *
*............................................................................*
*Br   13 :fRunInfo.fBTime :
fBTime[fRunInfo_]                                *
*Entries :     2615 : Total  Size=       8047 bytes  File Size  =
117 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
68.78     *
*............................................................................*
*Br   14 :fRunInfo.fEDate :
fEDate[fRunInfo_]                                *
*Entries :     2615 : Total  Size=       8047 bytes  File Size  =
117 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
68.78     *
*............................................................................*
*Br   15 :fRunInfo.fETime :
fETime[fRunInfo_]                                *
*Entries :     2615 : Total  Size=       8047 bytes  File Size  =
117 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
68.78     *
*............................................................................*
*Br   16 :fRunInfo.fTl :
fTl[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
116 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.34     *
*............................................................................*
*Br   17 :fRunInfo.fTa :
fTa[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
116 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.34     *
*............................................................................*
*Br   18 :fRunInfo.fPwr :
fPwr[fRunInfo_]                                    *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   19 :fRunInfo.fSTot :
fSTot[fRunInfo_]                                  *
*Entries :     2615 : Total  Size=       8046 bytes  File Size  =
116 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.36     *
*............................................................................*
*Br   20 :fRunInfo.fSErr :
fSErr[fRunInfo_]                                  *
*Entries :     2615 : Total  Size=       8046 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.97     *
*............................................................................*
*Br   21 :fRunInfo.fS1 :
fS1[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.95     *
*............................................................................*
*Br   22 :fRunInfo.fS2 :
fS2[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
114 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
70.56     *
*............................................................................*
*Br   23 :fRunInfo.fSMlt :
fSMlt[fRunInfo_]                                  *
*Entries :     2615 : Total  Size=       8046 bytes  File Size  =
116 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.36     *
*............................................................................*
*Br   24 :fRunInfo.fS3 :
fS3[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
114 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
70.56     *
*............................................................................*
*Br   25 :fRunInfo.fS4 :
fS4[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   26 :fRunInfo.fS5 :
fS5[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   27 :fRunInfo.fS6 :
fS6[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
114 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
70.56     *
*............................................................................*
*Br   28 :fRunInfo.fS7 :
fS7[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   29 :fRunInfo.fS8 :
fS8[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   30 :fRunInfo.fS9 :
fS9[fRunInfo_]                                      *
*Entries :     2615 : Total  Size=       8044 bytes  File Size  =
114 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
70.56     *
*............................................................................*
*Br   31 :fRunInfo.fS10 :
fS10[fRunInfo_]                                    *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   32 :fRunInfo.fS11 :
fS11[fRunInfo_]                                    *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   33 :fRunInfo.fS12 :
fS12[fRunInfo_]                                    *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   34 :fRunInfo.fS13 :
fS13[fRunInfo_]                                    *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
113 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
71.19     *
*............................................................................*
*Br   35 :fRunInfo.fS14 :
fS14[fRunInfo_]                                    *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   36 :fRunInfo.fS15 :
fS15[fRunInfo_]                                    *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*
*Br   37 :fRunInfo.fS16 :
fS16[fRunInfo_]                                    *
*Entries :     2615 : Total  Size=       8045 bytes  File Size  =
115 *
*Baskets :        1 : Basket Size=      16000 bytes  Compression= 
69.96     *
*............................................................................*

If You need more info tell me know. But I look at what is going on even
with simple class
with single data member and can say that beehive is the same.

	Regards Andrey.
text/x-vcard attachment: Card for Andrei Martemianov
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