Improved code [skip ci]

Added prefetching for HNSW [skip ci]
2026-07-22 03:57:34 +08:00 · 2025-05-08 21:14:34 -07:00 · 2025-05-08 20:20:12 -07:00
1 changed files with 6 additions and 0 deletions
--- a/src/hnswutils.c
+++ b/src/hnswutils.c
@@ -805,6 +805,12 @@ HnswLoadUnvisitedFromDisk(HnswElement element, HnswUnvisited * unvisited, int *u
 		if (!found)
 			unvisited[(*unvisitedLength)++].indextid = *indextid;
 	}
+
+#ifdef USE_PREFETCH
+	/* TODO limit by get_tablespace_io_concurrency */
+	for (int i = 0; i < *unvisitedLength; i++)
+		PrefetchBuffer(index, MAIN_FORKNUM, ItemPointerGetBlockNumber(&unvisited[i].indextid));
+#endif
 }

 /*
Author	SHA1	Message	Date
Andrew Kane	6e5e0cf7b5	Improved code [skip ci]	2025-05-08 21:14:34 -07:00
Andrew Kane	bbe7135ae4	Added prefetching for HNSW [skip ci]	2025-05-08 20:20:12 -07:00