diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index 4d60ae0..5262fbe 100644
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -742,6 +742,8 @@ _bt_insertonpg(Relation rel,
 		bool		newitemonleft;
 		Buffer		rbuf;
 
+		sleep(2);
+
 		/* Choose the split point */
 		firstright = _bt_findsplitloc(rel, page,
 									  newitemoff, itemsz,
@@ -754,6 +756,8 @@ _bt_insertonpg(Relation rel,
 							   BufferGetBlockNumber(buf),
 							   BufferGetBlockNumber(rbuf));
 
+		sleep(2);
+
 		/*----------
 		 * By here,
 		 *