Again move function where we set effective_cache_size's default

src/backend/bootstrap/bootstrap.c

@@ -312,8 +312,6 @@ AuxiliaryProcessMain(int argc, char *argv[])
 		proc_exit(1);
 	}
 
-	set_default_effective_cache_size();
-	
 	/*
 	 * Identify myself via ps
 	 */
@@ -352,6 +350,8 @@ AuxiliaryProcessMain(int argc, char *argv[])
 			proc_exit(1);
 	}
 
+	set_default_effective_cache_size();
+	
 	/* Validate we have been given a reasonable-looking DataDir */
 	Assert(DataDir);
 	ValidatePgVersion(DataDir);

src/backend/postmaster/postmaster.c

@@ -778,8 +778,6 @@ PostmasterMain(int argc, char *argv[])
 		ExitPostmaster(1);
 	}
 
-	set_default_effective_cache_size();
-
 	/*
 	 * Locate the proper configuration files and data directory, and read
 	 * postgresql.conf for the first time.
@@ -797,6 +795,8 @@ PostmasterMain(int argc, char *argv[])
 		ExitPostmaster(0);
 	}
 
+	set_default_effective_cache_size();
+
 	/* Verify that DataDir looks reasonable */
 	checkDataDir();