private IList <Hit> ClosestMatchOnDisk( Vector vector, IStringModel model) { var time = Stopwatch.StartNew(); var pages = _sessionFactory.ReadPageInfo(_ixpFileName); var hits = new List <Hit>(); using (var indexStream = _sessionFactory.CreateReadStream(_ixFileName)) using (var vectorStream = _sessionFactory.CreateReadStream(_vecFileName)) { foreach (var page in pages) { indexStream.Seek(page.offset, SeekOrigin.Begin); var hit = ClosestMatchInPage( vector, indexStream, vectorStream, model); hits.Add(hit); } } this.Log($"scan took {time.Elapsed}"); return(hits); }