{"id":"btree-page-writes-unbuffered-by-app","text":"`PageManager` has no application-level page cache — every `read_page` reads from the file and every `write_page` writes immediately, relying entirely on the kernel page cache for performance","truth_value":"IN","source":"entries/2026/05/29/topic-o-direct-and-dio.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"btree-page-writes-unbuffered-by-app","truth_value":"IN","reason":"premise"}]}}