1.前提創建數據庫和表格式

[root@python ~]# mysql -uroot -pcentos

mysql> create database memory;

mysql> use memory;

mysql> create table memory (memory int,time varchar(50));

2.編寫每睡眠一秒就將系統use_mem內存寫入數據庫

[root@python ~]# cat mem.py

#!/usr/bin/env python

#-*- coding: UTF-8 -*-

import time #導入時間模塊

import MySQLdb as mysql #導入MySQLdb模塊

db=mysql.connect(user='root',passwd='centos',db='memory',host='localhost') #連接數據庫

cursor=db.cursor() #創建遊標對象

def getMem():

f = open('/proc/meminfo')

total = int(f.readline().split()[1])

free = int(f.readline().split()[1])

buffer = int(f.readline().split()[1])

cache = int(f.readline().split()[1])

mem_used = total - free - buffer - cache

cur_time =time.strftime('%Y%m%d%H%M%S', time.localtime(time.time()))

sql = 'insert into memory (memory, time) value (%s,%s)'%(mem_used,cur_time)

cursor.execute(sql) #執行sql語句

print 'ok'

while True:

getMem()

time.sleep(1) # sleep 1 second

3.執行腳本，查看數據庫

Python將系統內存使用量寫入mysql數據庫