ci: Improves CI test performance #23189
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Enhances CI test performance by sharding frontend tests across more workers, switching to smaller VMs, and increasing worker memory limits. Also configures vitest to use threads. CAT-1964
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E2E Tests: n8n tests passed after 7m 14.9s Run Details
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shortstacked
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Codecov Report✅ All modified and coverable lines are covered by tests. 📢 Thoughts on this report? Let us know! |
alexgrozav
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Dec 15, 2025
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Summary
There was a change in March where we set the memory limits from 1024 (1GB) -> 1MB (1024 sort of)
Related Linear tickets, Github issues, and Community forum posts
https://linear.app/n8n/issue/CAT-1964/ci-optimize-jest-and-vitest-test-runner-performance
Review / Merge checklist
release/backport(if the PR is an urgent fix that needs to be backported)