I have a few database driven sites running on my VPS and have noticed that some pages take a few seconds to load. One of the problem childs is Gallery2. The other is actually SquirrelMail. My server load is pretty low, and I just upgraded from Mtx to Ltx and that didn't really help the speed at all. I'm wondering which may be more effective. Installing a PHP accelerator such as XCache, or eAccelerator, or optimizing MySQL. I'm not sure which one the problem really lies with. I figured I could start with optimizing the MySQL... does anyone have any good tutorials on doing this? Any thoughts/inputs are appreciated.