piberger / Xbb

New repository for VHbb plus other Xbb analyses
0 stars 8 forks source link

Update file in sys step instead of copy (in some cases) #56

Open piberger opened 6 years ago

piberger commented 6 years ago

In some cases it could be beneficial to update the existing root tree with the new branches instead of copying. Adding a branch that depends only on few input branches would particularly profit from these, since baskets for not used branches would not have to be loaded (and written!) and one could save a lot of I/O. This would also need some way of checking the processed files afterwards if the new branches exist.

piberger commented 6 years ago

Alternatively on could add tree friends. To be tested if it fully works with TChains!.