Unicorn, Passenger 5, and Puma Feature Comparison
| cate | UNICORN | PUMA | PASSENGER 5 |
|---|---|---|---|
| Clustering | Yes | Yes | Yes |
| Multithreaded | No | Yes | Enterprise Only |
| Slow client buffering | No | Yes | Yes |
| ActionCable | Yes | Yes | Yes |
| Support | Open Source | Open Source | Open Source / Paid |
| Installation | Gem | Gem | Binary or Gem |
| Zero-Downtime Deploys | Yes | Yes | Enterprise |
- passengerでzero-downtime deployが enterpriseなのはしらなかった