title: Caching content, memory vs file system (PHP and Apache)
body: <p>I am somewhat new to programming and am having a lot of question about data caching. 
  Say, we have a piece of static content. What's gonna be faster: save the content into a php\html file and output the page as is, or use a script that will output the content via apc_fetch() (given it was previously saved in memory)? In the first case Apache will always read the page from the file system and it never keeps pages in RAM, doesn' it? Does current APC implementation work well with FastCGI? Thanks in advance!</p>
  
  <p>I am still not getting as to why do benchmarks show a quadruple speed-up when using APC caching compared to using the file system, while Apache can load static pages so fast. </p>