I've ran a simple test to see the performance impact of TLS on MySQL connections with MySQL Connector/Python

The test results are in this Jupyter notebook.

TL;DR:

• Try to reuse connections if you use TLS
• Establishing TLS connections is expensive (server & client)
• Improved performance might be possible in the future by using TLS Tickets

Not tested:

• Difference between YaSSL and OpenSSL
• Difference between Ciphersuites
• Performance of larger resultsets and queries

The source of this post is in this gist on nbviewer.

After reading about the difference between MySQL Connector/Python and MySQLdb on this blog post I wondered how the C Extension option in Connector/Python would perform.

If you want to run the code yourself you'll need: Jupyter/IPython, Python 3, Requests, MySQLdb, Connector/Python, Matplotlib, Pandas and MySQL.

In [1]:

%matplotlib notebook

In [2]:

import random
import gzip
import time

import pandas as pd
import matplotlib.pyplot as plt
import requests
import mysql.connector
import MySQLdb
for imp in [mysql.connector, MySQLdb]:
    print('Using {imp} {version}'.format(imp=imp.__name__, version=imp.__version__))
print('C Extension for …