Speed up PHP on NFS with turbo_realpath on CentOS
If you run a website based on PHP, and have your source files on a network file system like NFS, OCFS2, or GlusterFS, and combine it with PHP's open_basedir protection, you'll quickly notice that the performance will degrade substantially. If you want to isolate your websites from each other (or from the rest of the operating system), how can you retain any shred of performance?