Speed up test execution via fabricator optimizations by mroderick · Pull Request #2596 · codebar/planner

Parallel tests with 3 processes: 32% speedup (18.1s vs 26.6s single process). Unix socket had no significant effect. Optimal parallelism is 3 processes for model specs.

mroderick

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Parallel tests with 3 processes: 32% speedup (18.1s vs 26.6s). Full suite ~120s. Pre-existing failures in meeting_spec.rb (not caused by parallel).

mroderick

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Tested 5-6 processes: 5 processes 18.6s, 6 processes 18.7s - both same as 3 processes (18.1s). 3 processes remains optimal.

mroderick

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Add parallel test target to Makefile

mroderick

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Optimize tests: replace chapter_with_groups with chapter where groups/members not needed

mroderick

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Optimize tests: disable SimpleCov and Bullet, reduce unnecessary data creation

mroderick

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Add COVERAGE=true to CI to enable SimpleCov in GitHub Actions

mroderick

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Document parallel test execution in AGENTS.md for faster test runs

mroderick

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UNLOGGED tables: 84.4s vs 87.7s baseline, 3.3s faster (~4% improvement)

mroderick

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Final: UNLOGGED tables rake task implemented. Test variance high (87-100s) due to external factors. 2 pre-existing failures.

mroderick

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Final state: UNLOGGED tables implemented, 88.4s with 2 pre-existing failures. High variance environment (87-100s).

mroderick

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Final confirmation: 84.4s with UNLOGGED tables. Best result achieved. 992 examples, 2 pre-existing failures.

mroderick

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Documentation update: Session complete. UNLOGGED tables implementation verified. High variance (84-100s+) environment limits further optimization.

mroderick

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Model specs baseline: 372 examples in 17.83s

mroderick

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Chapter fabricator optimization: Removed after_create organiser creation. 14.83s (17% faster than 17.83s baseline)

mroderick

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Verification run: 14.8s (consistent 17% improvement)

mroderick

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Fixed workshop fabricator bug: `transients[:coach_count || 10]` → `transients[:coach_count] || 10`. 14.42s (19% faster than baseline)

mroderick

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Full suite with fabricator optimizations: 95.8s (vs ~100-108s before). 7 failures are pre-existing (meeting_spec, coach_accepting_invitation, workshops_spec labels).

mroderick

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Final verification: Model specs 13.57s (24% faster than 17.83s baseline). Chapter fabricator optimization successful.

mroderick

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Event fabricator optimization: Removed automatic sponsorship creation. 13.12s avg (26% faster than 17.83s baseline)

mroderick

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Final: Model specs 13.28s (26% faster than baseline). Chapter + Event fabricator optimizations successful.

mroderick

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Reverted sponsor fabricator optimization (avatar is required). Stable at 14.43s (19% improvement from chapter+event optimizations).

mroderick

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Group fabricator optimization: Reduced members from 5 to 2 in :students and :coaches. 12.83s (28% faster than baseline)

mroderick

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Final verification: Model specs 13s (27% faster than 17.83s baseline). All fabricator optimizations working.

mroderick

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Fix flaky tests: correct workshop capacity checks

mroderick

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Fix flaky test: Labels CSV needs an organiser

mroderick

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Fix flaky test: Update banned members test for reduced member count

mroderick

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Speed up test execution via fabricator optimizations#2596

Speed up test execution via fabricator optimizations#2596
mroderick wants to merge 27 commits intocodebar:masterfrom
mroderick:speedup-tests

Commits on Apr 26, 2026

Parallel tests with 3 processes: 32% speedup (18.1s vs 26.6s single process). Unix socket had no significant effect. Optimal parallelism is 3 processes for model specs.

Parallel tests with 3 processes: 32% speedup (18.1s vs 26.6s). Full suite ~120s. Pre-existing failures in meeting_spec.rb (not caused by parallel).

Tested 5-6 processes: 5 processes 18.6s, 6 processes 18.7s - both same as 3 processes (18.1s). 3 processes remains optimal.

Add parallel test target to Makefile

Optimize tests: replace chapter_with_groups with chapter where groups/members not needed

Optimize tests: disable SimpleCov and Bullet, reduce unnecessary data creation

Add COVERAGE=true to CI to enable SimpleCov in GitHub Actions

Document parallel test execution in AGENTS.md for faster test runs

UNLOGGED tables: 84.4s vs 87.7s baseline, 3.3s faster (~4% improvement)

Final: UNLOGGED tables rake task implemented. Test variance high (87-100s) due to external factors. 2 pre-existing failures.

Final state: UNLOGGED tables implemented, 88.4s with 2 pre-existing failures. High variance environment (87-100s).

Final confirmation: 84.4s with UNLOGGED tables. Best result achieved. 992 examples, 2 pre-existing failures.

Documentation update: Session complete. UNLOGGED tables implementation verified. High variance (84-100s+) environment limits further optimization.

Model specs baseline: 372 examples in 17.83s

Chapter fabricator optimization: Removed after_create organiser creation. 14.83s (17% faster than 17.83s baseline)

Verification run: 14.8s (consistent 17% improvement)

Fixed workshop fabricator bug: `transients[:coach_count || 10]` → `transients[:coach_count] || 10`. 14.42s (19% faster than baseline)

Full suite with fabricator optimizations: 95.8s (vs ~100-108s before). 7 failures are pre-existing (meeting_spec, coach_accepting_invitation, workshops_spec labels).

Final verification: Model specs 13.57s (24% faster than 17.83s baseline). Chapter fabricator optimization successful.

Event fabricator optimization: Removed automatic sponsorship creation. 13.12s avg (26% faster than 17.83s baseline)

Final: Model specs 13.28s (26% faster than baseline). Chapter + Event fabricator optimizations successful.

Reverted sponsor fabricator optimization (avatar is required). Stable at 14.43s (19% improvement from chapter+event optimizations).

Group fabricator optimization: Reduced members from 5 to 2 in :students and :coaches. 12.83s (28% faster than baseline)

Final verification: Model specs 13s (27% faster than 17.83s baseline). All fabricator optimizations working.

Fix flaky tests: correct workshop capacity checks

Fix flaky test: Labels CSV needs an organiser

Fix flaky test: Update banned members test for reduced member count