启动调优程序之前，可以通过如下命令获取帮助信息：
python main.py --help
输出帮助信息结果如下：
``` usage: main.py [-h] [-m {train,tune}] [-f CONFIG_FILE] [--db-name DB_NAME] [--db-user DB_USER] [--db-user-pwd DB_USER_PWD] [--port PORT] [--host HOST] [--host-user HOST_USER] [--host-user-pwd HOST_USER_PWD] [--host-ssh-port HOST_SSH_PORT] [--scenario {ap,tp,htap}] [--benchmark BENCHMARK] [--model-path MODEL_PATH] [-v]
X-Tuner: a self-tuning toolkit for OpenGauss.
optional arguments: -h, --help show this help message and exit -m {train,tune}, --mode {train,tune} train a reinforcement learning model or tune by your trained model. -f CONFIG_FILE, --config-file CONFIG_FILE you can pass a config file path or you should manually set database information. --db-name DB_NAME database name. --db-user DB_USER database user name. --db-user-pwd DB_USER_PWD database user password. --port PORT database connection port. --host HOST where did your database install on? --host-user HOST_USER user name of the host where your database installed on. --host-user-pwd HOST_USER_PWD user password of the host where your database installed on. --host-ssh-port HOST_SSH_PORT host ssh port. --scenario {ap,tp,htap} --benchmark BENCHMARK --model-path MODEL_PATH the place where you want to save model weights to or load model weights from. -v, --version show version. ```
