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] [--port PORT] [--host HOST]
[--host-user HOST_USER] [--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.
--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-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.
```
