改善服务器响应时间[关闭]

So I'm using a wordpress theme but it's kinda slow so when I opened my chrome inspecter I saw this for the main request(sitename.com/)

The wordpress site runs on my localhost, from where I should start debugging or what tools should I use?

Use Xdebug extension for apache server,

http://xdebug.org/docs/profiler

try plugin performance profiler: http://wordpress.org/plugins/p3-profiler/ and definitely use caching; super cache and hyper cace are simple to configure. If you're concerned about overhead, hyper cache has almost none. It only caches a page when it's visited the first time & does not 'preload' the cache like super cache or w3 total cache.

Upgrading to PHP 5.5 with the Opcache extension enabled should give you a ~400% speed improvement for Wordpress. Unless external resources are involved, of course.