How many req per second can a single mongrel server handle of RoR app.
mahmud: FWIW 150 requests per second is peanuts. If your server doesn't reach the mid 2000s serving a typical index page (static or otherwise, at about 4kb) without caching or tweaking, I say ditch it. Life is too short for lousy web servers. Nginx gets 8k out of the box, lightty about 6k or so.