def get_total_config_exec_time(self):
sum_exec_time = <NUM_LIT:0><EOL>for config_name in self.results.keys():<EOL><INDENT>exec_time = self.get_config_exec_time(config_name)<EOL>if exec_time is not None:<EOL><INDENT>sum_exec_time += exec_time<EOL><DEDENT><DEDENT>return sum_exec_time<EOL>
:return: total execution time of all configurations