My new server has a ton of RAM, and all of my web sites use all dynamic content (php/mysql). So I can't really cache much. So I figured rather than let that RAM go to waste (and in addition to give mysql some very large caches), I'd run my web folder off a RAM disk.
So as you'd expect, it's super fast. So now I'm wondering if there are any caches in apache, things that would be on by default, that I should disable. All of my files are already in ram, so a ram cache would just be double caching, right?