Greetings,
I have 2 .root files, file1.root and file2.root
When I hadd them
hadd ALL_file.root file1.root file2.root
hadd Target file: ALL_file.root
hadd Source file 1: file1.root
hadd Source file 2: file2.root
hadd Target path: ALL_file.root:/
I get the size of
ifarm1102> du -sh ALL_file.root
224M ALL_file.root
Then I deleted this file and hadded the 2 files again, I changed nothing in the 2 files
ifarm1102> du -sh ALL_file.root
196M ALL_file.root
Notice the file size changed.
I can do this a few more times and get file sizes 195M, 235M
*edit: The files size of each file is
ifarm1102> du -sh file1.root
33M file1.root
ifarm1102> du -sh file2.root
192M file2.root
However the number of entries in each file is the same.
I am just wondering why the file size change.