Knapsack
A Ruby gem that splits tests evenly across parallel CI nodes to speed up test suite execution.
What is Knapsack?
Knapsack is a Ruby gem that optimizes test suite execution in CI/CD pipelines by splitting tests across parallel nodes. It solves the problem of slow CI builds by distributing tests based on their historical execution times, ensuring balanced workloads and faster feedback loops. The tool integrates seamlessly with popular Ruby test frameworks and CI providers without requiring changes to your test code.
Ruby developers and teams using RSpec, Cucumber, Minitest, or similar test frameworks in CI environments like CircleCI, Travis CI, or GitLab CI. It's particularly valuable for projects with large test suites where build times are a bottleneck.
Developers choose Knapsack for its simplicity and effectiveness in reducing CI build times without switching test runners or CI providers. Its static splitting based on actual execution data provides reliable performance improvements, and its open-source nature offers a free alternative to commercial parallel testing services.
Overview
Knapsack splits tests evenly across parallel CI nodes to run fast CI build and save you time.
Use Cases
Best For
- Speeding up RSpec test suites in parallel CI jobs
Related Projects
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