How can I clean the memory used by deleted objects in a TFile/TDirectory?

Hi,

I have some code that creates and then deletes many objects and (TH, TTree, TDirectory) in a ROOT file and that saves this file with only a few remaining objects. When I reopen the ROOT file I see only the TKeys of the few objects that I have not deleted, but the size of the file is way too big for these objects (it looks like that some previously deleted objects are still using space) . I would like to know how could I clean efficiently the ROOT file. I am using ROOT 5.14/00c. I delete the objects in memory using TDirectory::RecursiveRemove(TObject*) and the TKeys using TDirectory::Delete(char *).

Thanks
Pierre-Luc Drouin Received on Thu Apr 12 2007 - 18:17:21 CEST