Fellow ROOTers, We're trying to read in multiple chains sequentially, limiting ourselves to read in certain branches of trees. There seems to be a serious memory leak, as illustrated by the following code snippet: { for (int i=0; i < 1000; i++) { TChain *t = new TChain("t1"); t->Add("tree1.root"); t->SetBranchStatus("*", 0); t->GetEntry(0,0); delete t; } } [tree1.root is created by $ROOTSYS/tutorials/tree1.C] The culprit seems to be TBranchElement::GetEntry calling TBranchElement::SetAddress, which New()'s objects even though none of the branches have been activated, and does not delete them when the TChain is deleted. - B
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