{"id":"no-o-direct-usage","text":"No file in the ddia-implementations codebase uses `O_DIRECT`, `os.open()`, or any `os.O_` flags; all I/O goes through Python's buffered `open()` and the kernel page cache","truth_value":"IN","source":"entries/2026/05/29/topic-o-direct-and-dio.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"no-o-direct-usage","truth_value":"IN","reason":"premise"}]}}