disk resident Ntuples

From: GALYARDT@acdft1.fnal.gov
Date: Mon Jul 06 1998 - 23:26:25 MEST


I am having a bit of trouble creating a proper disk 
resident Ntuple.  I used TFile to create a file before I 
created the Ntuple, which should have made the Ntuple 
disk resident, according to my understanding.  I set the 
buffer size of the Ntuple at 16000 Kb, and still, I could 
watch my DAQ program eat all of the RAM and swap space on 
the Red Hat Linux 5.0 PC I'm working on (the machine has 
more than 16 Mb of RAM).  If I let the program continue, 
filling 128 variables with each run, it gives an error 
before the completion of 100 runs:  

Fatal in <operator new>: storage exhausted 
aborting

Suggestions?



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