Load Testing our Heroku app

It is a very basic set of tests, but it does give you a rough idea on what may be possible to do with a dyno or two.

Did something similar recently, and adding dynos didn't help. Then I realized I was limited by my own bandwidth; both my co-founder and I could hammer heroku from our homes and still see the same maximum throughput individually.

Our main take-away was that their caching layer was really effing fast.

Heroku's dynos scale just fine. As long as you got the money you can keep adding dynos. However Heroku's database services do not scale as easily. I recommend using Amazon's RDS instead. RDS is F'n amazing. You can scale the db up or down and take snapshots without any downtime.