Thin vs. unicorn for development mode on Mac?

Question

I'm shocked that this question hasn't been asked already, but I swear I looked everywhere. Are there advantages of thin over unicorn, or vice versa, when running Rails 3 in development mode?

Answer 1

I decided to go with Thin for development because Heroku runs my apps on Thin in production.

It's always a good practice to make your dev ENV match your production ENV as much as possible.

Here's a couple breakdowns of Thin vs. Unicorn, although they're a little old.

http://snaprails.tumblr.com/post/441654760/thin-vs-unicorn-performance-benchmark

http://cmelbye.github.com/2009/10/04/thin-vs-unicorn.html

Answer 2

Unicorn runs very well on Heroku now, you may want to check this out: http://michaelvanrooijen.com/articles/2011/06/01-more-concurrency-on-a-single-heroku-dyno-with-the-new-celadon-cedar-stack/

And of course this to get a better idea of why you'd want to use Unicorn: https://github.com/blog/517-unicorn

I'm moving away from Thin now myself after exploring this more fully.

**I should note, this is only possible on the Celadon Cedar stack, which should be something you're shifting towards at this point anyway.