This is actually possible to do dynamically[1] so you can keep your costs down. I found this post last week and implemented it over the weekend, and it's pretty

This is actually possible to do dynamically[1] so you can keep your costs down. I found this post last week and implemented it over the weekend, and it's pretty neat to watch it work. So far I've only implemented this for workers, but it's certainly possible[2] to implement it for dynos. [1]: http://blog.darkhax.com/2010/07/30/auto-scale-your-resque-workers-on-heroku http://blog.darkhax.com/2010/07/30/auto-scale-your-resque-wo... [2]: http://github.com/ddollar/heroku-autoscale http://github.com/ddollar/heroku-autoscale