PHP Performance: Additional CPU cores vs faster CPU cores

  Just over a week ago I received a contact form email detailing slow performance issues with a LAMP (Linux, Apache MySQL, PHP) web server. During the audit phase, I found that the server’s load average was pretty idle. However, the website was indeed very slow. Among a slew of other issues and misconfigurations, one aspect […]

Set PHP realpath_cache_size ‘correctly’

Over the last few months I’ve started enabling PHP realpath_cache_size and realpath_cache_ttl for the performance benefits. At the time I followed the settings I found here. It bugged me that I was blindly setting the size of the cache without actually know what and how much storage was being used. In this post I will show you […]