Our friends at TextDrive/Joyent have been slugging away at their seriously impressive mega-cluster for quite some time now and it looks like it’s paying off. Just a few days ago, Shopify announced they were coming over.

And now Jason Hoffman shares a few statistics on how they’re making a new big Rails app scale to no less than 4,000 requests per second on one of their sub-pages. That’s a pretty juicy number and is thanks to their BIG-IP-to-48-mongrels setup for Twitter.

Keep rocking, boys.

BTW, the company’s Jason Hoffman will be giving a 3-hour tutorial at RailsConf entitled Scaling a Rails Application from the Bottom Up. You’d be well-advised to secure an early seat to that one.