Knapsack Pro
Knapsack Pro

Speed up Jest tests run your 1 hour JavaScript test suite in 2 minutes
with the optimal parallelisation on Gitlab CI

Run Jest tests in parallel on Gitlab CI in the optimal way and avoid bottleneck parallel jobs.

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Without Knapsack Pro

Uneven split

CI Node 0
9 minutes
CI Node 1
20 minutes
CI Node 2
4 minutes
CI Node 3
7 minutes

With Knapsack Pro

Optimal split

CI Node 0
10 minutes
CI Node 1
10 minutes
CI Node 2
10 minutes
CI Node 3
10 minutes

How it works

Knapsack Pro in Queue Mode splits tests in a dynamic way across parallel Gitlab CI nodes to ensure each Gitlab CI node finishes work at a similar time. Thanks to that, your CI build time is as fast as possible. It works with many supported CI servers.

Diagram that shows files distributed to 3 parallel CI nodes

GitLab CI parallelisation - how to run parallel jobs for Ruby & JavaScript projects

Gitlab CI parallelism integration for Jest

Start using Knapsack Pro with Jest on Gitlab CI

Sign up and speed up your tests.

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