sub = l.At(i)
result += sub.GetTotalSize()
return result * 1.0
f = TFile(sys.argv[1], "READ")
trees = ['CollectionTree', 'RunMetadataTree']
for tree in trees:
t = TTree()
t = f.Get(tree)
branchnames = map(lambda branch: branch.GetName(), t.GetListOfBranches())
MB = 1e6
GB = 1e9
zipbytes = t.GetZipBytes() # returns compressed size.
names = {}
sizes = {}
for b in branchnames:
branch = t.GetBranch(b)
if b in names.keys():
names[b] += 1
#print "names[b]=", names[b]
continue
s = get_branch_size(branch)
names[b] = 1
sizes[b] = s
print "tree %s" % tree
print "Collection Size (MB) #duplication of data (factor)"
