how many new inodes used, with and without garbage collection (keep every 100) and caching
before: 6248932
after_no_gc: 6687947
after_gc 6312874
new_no_gc: 439015
new_gc: 63942
after_gc_no_cache: 6258853
after_no_gc_no_cache: 6284745
new_gc_no_cache: 9921
new_no_gc_no_cache: 35813