Python的MySQL驱动pymysql与mysqlclient性能对比

时间 2019-11-13

标签 python mysql 驱动 pymysql mysqlclient 性能对比栏目 Python 繁體版

原文原文链接

Python版本3.6python

测试语句：mysql

select * from FOO;

mysql终端直接执行:git

46410 rows in set (0.10 sec)

python程序需安装profilehooks进行调用耗时分析github

pymysql驱动测试程序：sql

# 安装：pip install pymysql

from profilehooks import profile
import pymysql.cursors
import pymysql
connection = pymysql.connect(host='localhost', user='root', db='foo')
c = connection.cursor()

@profile(immediate=True)
def read_by_pymysql():
    c.execute("select * from FOO;")
    res = c.fetchall()



read_by_pymysql()

分析结果：耗时2.4s，与原始mysql读取差一个数量级性能

mysqlclient驱动测试程序：测试

# 安装：pip install mysqlclient 或 pip install git+https://github.com/PyMySQL/mysqlclient-python.git

from profilehooks import profile
import MySQLdb

connection = MySQLdb.connect(host='localhost', user='root', db='foo')
c = connection.cursor()

@profile(immediate=True)
def read_by_mysqlclient():
    c.execute("select * from FOO;")
    res = c.fetchall()



read_by_mysqlclient()

分析结果：耗时0.4s, 和mysql直接执行基本在同一量级fetch

综上，mysqlclient的性能要好于pymsqlcode