How par8o Sped up Rails CI Builds 8x with Semaphore Boosters

Par8o, a healthcare coordination platform, successfully reduced its build time from over two hours to 13 minutes by using Semaphore Boosters, a tool for fully automated parallel continuous integration for Rails projects. Initially, par8o's engineering team manually organized tests into folders to parallelize them, which was cumbersome and required frequent updates. By adopting Boosters, which automatically distributes tests based on timing information, par8o streamlined its process, particularly for RSpec browser tests, thus achieving faster feedback and reducing the need for context switching during development. This improvement has saved time and mental energy for the team, allowing them to focus more on their primary tasks without being interrupted by lengthy test runs. Boosters, primarily supporting RSpec and Cucumber tests, proved easy to set up and significantly enhanced productivity by cutting down test suite times.

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