Re: [ROOT] Files sizes?

From: Rene Brun (Rene.Brun@cern.ch)
Date: Thu Jul 22 2004 - 18:21:30 MEST


This could be:
  -a compression effect
  -the fact that you do not reset some arrays

Could you send 
  -the result of tree.Print() for 100, 1000 amd 10000 events
  - for the file with 10000 events the result of 
     -tree.Show(50);
     -tree.Show(500);
     -tree.Show(5000);


Rene Brun

Creighton Hogg wrote:
> 
> Hello,
> I'm having trouble with unusually large root files being produced by an
> ORCA program I have written.  It writes 6 floats and 34 arrays of 4 floats each
> per event and the file size seems to vary non-linearly with the number of
> events.  With 100 events it is roughly 2Meg.  With 1000 events it is
> roughly 70 Meg.  With 10000 events it is roughly 1Gig.
> Does anyone have an idea why this would happen?
> Thanks



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