diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c
index 77e683a..246607c 100644
--- a/src/backend/postmaster/autovacuum.c
+++ b/src/backend/postmaster/autovacuum.c
@@ -1739,6 +1739,12 @@ AutoVacuumUpdateDelay(void)
 	{
 		VacuumCostDelay = MyWorkerInfo->wi_cost_delay;
 		VacuumCostLimit = MyWorkerInfo->wi_cost_limit;
+		elog(LOG, "autovac_update_delay(pid=%u db=%u, rel=%u, cost_limit=%d, cost_delay=%d)",
+				 MyWorkerInfo->wi_proc->pid,
+				 MyWorkerInfo->wi_dboid, 
+				 MyWorkerInfo->wi_tableoid,
+				 MyWorkerInfo->wi_cost_limit,
+				 MyWorkerInfo->wi_cost_delay);
 	}
 }
 
@@ -1811,7 +1817,7 @@ autovac_balance_cost(void)
 											worker->wi_cost_limit_base),
 										1);
 
-			elog(DEBUG2, "autovac_balance_cost(pid=%u db=%u, rel=%u, cost_limit=%d, cost_limit_base=%d, cost_delay=%d)",
+			elog(LOG, "autovac_balance_cost(pid=%u db=%u, rel=%u, cost_limit=%d, cost_limit_base=%d, cost_delay=%d)",
 				 worker->wi_proc->pid, worker->wi_dboid, worker->wi_tableoid,
 				 worker->wi_cost_limit, worker->wi_cost_limit_base,
 				 worker->wi_cost_delay);