I have an ESXi (v4.1 U2) box with 16GB RAM and 8 CPU cores available.
The full stack will incorporate 2 CentOS 6 instances:
1) DB Server MySQL 2) Web server Apache httpd load balancer 2X Jetty App. Servers (Scalatra + Scalate + ScalaQuery) Jedis cache
Resource-wise I should be fine, but am wondering what impact/benefit there is in going 64-bit with this setup? Apache will utilize Google mod_pagespeed with in-memory cache; Jedis is obviously in-memory as well.
I'm looking for max performance.