{'fraction_non_alphanumeric': 0.027600849256900213, 'fraction_numerical': 0.0, 'mean_word_length': 4.7560975609756095, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Real-time garbage collection in multi-threaded systems on a single processor

We show the difficulties that arise for the implementation of a real-time garbage collector (GC) in a multi-threaded system. A mechanism for synchronization between threads is proposed for a single processor system. It is shown how this mechanism can be used to maintain exact information on roots, to do incremental or even constant-time root-scanning and to allow pre-emption of GC activity.