{"id":"btree-has-page-io-counters","text":"The B-tree's `PageManager` tracks `pages_read` and `pages_written` with a `reset_counters()` method (multiply by `page_size` for bytes), but WAL writes are not counted by any existing counter","truth_value":"IN","source":"entries/2026/05/29/topic-write-amplification-measurement.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"btree-has-page-io-counters","truth_value":"IN","reason":"premise"}]}}