In our previous blog we found out that compilation speed on Amazon EC2 is not affected much by instance size. But what happens when we use our Hydra parallel Scala compiler? It turns out Hydra can achieve more than 5 times faster Scala compilation!

This is part of a series of blog posts on Scala compilation in the cloud: Using Scala in the Cloud: A Guide to Amazon EC2 Instance Types (this one) Scala Compilation Got 5x Faster With Triplequote Hydra We ran a number of Scala compilation benchmarks and look at what instance type is the fastest and what offers the best cost per build.

Back in September 2018 we asked for your help to better understand how much time is lost by Scala developers because of compilation, and with over 600 individuals filling up the survey we have some interesting data to discuss.

Coursera is the leading online educational platform, empowering more than 35 million learners across the world. Thanks to Hydra, Coursera gained 125 hours of development time otherwise lost to long compilation times every week, and countless more on their Continuous Integration infrastructure.