Jumbo Frames for Rails!

I do all of my system configuration through my Rails app and a large collection of gems. If we modify SSL configuration with force_ssl, why not change MTU size as well? Why stop at meddling with the transport layer from the application layer if we can get all the way down to the data link layer? This gem lets you do just that!

To install: gem install jumboframes. You also need to make sure the user that runs your Rails app has passwordless sudo access, but you should have this enabled anyway because it makes everything easier and more magical.

To use, just add require 'jumboframes' and then Jumboframes.enable somewhere in your environment configuration. Couldn't be easier!

This gem increases by your MTU by 6x on average, so on some benchmarks you'll be able to see a six-fold increase in network performance! It's magic!

Currently, jumboframes assumes your gigabit NIC is eth0. Feel free to modify the source if need be; future versions will allow for configuration.