一、通过pip工具安装

https://pypi.python.org/pypi/pip#downloads

cd /opt/
tar xzvf  pip-1.5.6.tar.gz
cd /opt/pip-1.5.6
python setup.py install
pip install ngxtop
ngxtop -c /usr/local/nginx/conf/nginx.conf

二、手动安装

https://pypi.python.org/pypi/setuptools#downloads

unzip setuptools-5.4.1.zip
cd ./setuptools-5.4.1
python setup.py install

https://github.com/lebinh/ngxtop/
unzip ngxtop-master.zip
cd /opt/ngxtop-master
python setup.py install
ngxtop -h
ngxtop -c /usr/local/nginx/conf/nginx.conf

总结：不管是用什么方式安装，log需要存放在/var/log/nginx下

[root@dm02 ~]# /usr/local/nginx/sbin/ngxtop -c /usr/local/nginx/conf/nginx.conf
running for 594 seconds, 2479 records processed: 4.17 req/sec

Summary:
|   count |   avg_bytes_sent |   2xx |   3xx |   4xx |   5xx |
|---------+------------------+-------+-------+-------+-------|
|    2479 |        13953.418 |  2422 |     0 |    57 |     0 |

Detailed:
| request_path   |   count |   avg_bytes_sent |   2xx |   3xx |   4xx |   5xx |
|----------------+---------+------------------+-------+-------+-------+-------|
| /index.php     |    1466 |         2296.791 |  1458 |     0 |     8 |     0 |
| /              |    1013 |        30822.733 |   964 |     0 |    49 |     0 |