--- a/src/backend/postmaster/bgwriter.c
+++ b/src/backend/postmaster/bgwriter.c
@@ -69 +69 @@ int            BgWriterDelay = 200;
-#define LOG_SNAPSHOT_INTERVAL_MS 15000
+#define LOG_SNAPSHOT_INTERVAL_MS 15
@@ -307 +307 @@ BackgroundWriterMain(char *startup_data, size_t startup_data_len)
-                       BgWriterDelay /* ms */ , WAIT_EVENT_BGWRITER_MAIN);
+                       1 /* ms */ , WAIT_EVENT_BGWRITER_MAIN);