RE: [ROOT] need info on low level stuff

From: HP Wei (hp@rentec.com)
Date: Tue Dec 10 2002 - 00:33:25 MET 

hi Philippe
   thanks for sheding some light.
   Here is another question:
   
   Suppose we have one branch with buffer size of 32000.
   br : Double_t d[100]
   
   Let's say there are millions of entries.
   
   If we do br.GetEvent(0);
   will ROOT extract into the buffer 
   800 bytes of data which contain only the 
   array in the first entry ?
   Or will it extract 3992*8 bytes of data which contain many 
   entries in addtion to the first entry ?
   
   The latter will be bad for speed concern if we only want
   the first entry.
   
 thanks,
 HP

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