Why my blog need caching, because the purpose of caching is to make the web page faster. If the page was cached, when is requested, the server will direct send the cache file to the server rather than generating html codes from PHP files, which will use a lot of system resources. Sometimes, cache is not a suitable solution for your web, if your web page need real-time and dynamically updates, but for some CMS system such as wordpress, the need of real-time update is not so important, and cache is a better way to speed up your web.
If you can not notice the existing of the cache, this cache system is perfect. How to design a perfect cache system, it is dependent on the system you want to cache, the perfect cache should update cache files if any changes occurred. Let’s take a guestbook for example, we know the guestbook page will be renewed if new message leaved, so we design a cache, when someone leaved his or her message, the cache will regenerate the cache files, this cache mechanism is perfect for this system, because you’ll not notice the cache, you may take it as a normal php page, we can also do the same thing to wordpress .
For wordpress, if we want to cache the posts and pages into real HTML files, the plug-in
cos-html-cache is the right one we need, this cache will generate a real HTML page for your post, when the post or page is edited or deleted or commented, the plug-in will regenerate cache files. Is it perfect? For default wordpress, yes it is perfect, because if any changes happened the cache will regenerate the cache file ,but if you have some third-part plug-ins , you may need to juge if you need this plug-in or not. Because cache will renew only on the condition of the four actions I’ve mentioned, as a blogger, I do not need so many plug-ins , I just want to blog to to make my blog more faster, as I used this plug-in, and It speed up my web dramatically!
