I'm installing Drupal 7 on a new server with 4 GB of memory. I'd like to get some hints on how to configure it properly, how much memory to give to MySQL, and how much memory to give to PHP. One thing I found out is that running Drupal 7 on Zend server is three times faster than running it on a normal Apache server. (I think it has to do with opcode caching. I noticed with devel module it uses one-third of the memory.
Can you share your configurations with me?