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waiting TTFB时间过长怎么办

Jun 06, 2016 pm 08:31 PM
php

waiting TTFB时间过长的解决办法:首先使用谷歌浏览器开发者工具调到Network;然后在sublime编辑器中die掉所有PHP代码;最后将“host=localhost”更改为“host=127.0.0.1”即可。

waiting TTFB时间过长怎么办

waiting(TTFB)时间过长怎么办?

本人在学习ajax无刷新分页的过程中,发现换页响应时间很长,要1秒以上

现将解决问题的步骤记录如下,希望能帮到遇到同样问题的小伙伴

1、使用谷歌chrome浏览器开发者工具(按F12打开),调到Network

f610ec92d29af96b05ad36e233a77c6.png

2、可以看到是waiting(TTFB)时间过长要1秒左右,直接转到PHP页面测试,还是同样问题

b9e0fc5b12fbab385ae9e3697275f6b.png

3、sublime编辑器die掉所有PHP代码,发现waiting(TTFB)只要12毫秒,可以判定时PHP代码的问题

c0b890a11947aa12343cb5c3ae1c059.png

4、反复测试发现是pdo连接数据库造成waiting(TTFB)时间长

d50f4cd1288124198db945acedefe59.png

5、将pdo连接中host=localhost;更改为host=127.0.0.1;解决问题。

ff16a3f6e0080046cc032f0f0f9d603.png

6、loclahost和127.0.0.1的区别

127.0.0.1无需解析,localhost还要本地DNS解析,所有127.0.0.1会更快

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