{"id":"bitcask-no-mmap","text":"Neither Bitcask implementation uses memory-mapped I/O; both use standard `open()`/`read()` with manual buffering, forgoing kernel page cache optimizations that production Bitcask implementations rely on for startup performance","truth_value":"IN","source":"entries/2026/05/29/topic-bitcask-startup-cost.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"bitcask-no-mmap","truth_value":"IN","reason":"premise"}]}}