Apc

If you are running WordPress on a VPS or dedicated server, a quick way to optimize performance is to install a php opcode cache. To understand why, you need to first understand how php processes a request. A php request goes through the following steps: Read Parse Compile Execute Output For every WordPress page requested, the php engine must go through all 5 steps. A php opcode cache keeps the complied php code in memory, thereby eliminating the 1st 3 steps above....