[Best practice] Heavy background tasks?

[eluser]Clooner[/eluser]
Actually I know about cron jobs but the problem is not that I can't run a cron job. The app will run on dedicated servers. It is a financial site which get's updated data every 60 seconds and every 24 minutes new reports have to be made up. As I said it will be using thousands of queries. I'm sorry if I was not clear before but I'm looking in server load reduction solutions like activeMQ, Having several processes generate a certain amount of data. The site will run across multiple servers So my thoughts are now that one will do raw data chunking serving that to another computer who works its magic on it. This data will be served to the front end(which is in CI). My question is how to handle large quantities of queries and data(not CI front end related actually).