`sudo bee update libxcb takes forever` ( = longer, that I ever had the patience to wait ). The package `libxcb` contains 10908 files. In `print_conflicts()` from `/usr/libexec/bee/bee.d/bee-cache`, `print_conflicting_files "${pkg}" | cut -d ' ' -f8- | sed -e 's,.*, &$,'` build a list of 8249 patterns, which are applied to the output of `tmp_merge_install_inventory_files "${TMPINSTALL[@]}"` which contains 339184 files. With the 8249 patterns, the grep will spit out about 10 lines a seconds, so my estimate for that step alone is about 15 minutes, but I'm sure I waited longer for `bee update` to complete. @pmenzel said, it took about an hour. When `print_conflicts` is disabled, the bee update takes no time at all. As a side note, the patterns generated from the filenames are not escaped and filenames containing pattern metacharacters ( e.g. `/usr/bin/[` ) might have unexpected consequences.