TEST-INFRA: [ci-execution-time] Investigate and optimize the 'Build: configured coverage report to run in parallal' workflow #1908

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opened 2026-04-03 00:11:47 +00:00 by freemo · 1 comment
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Metadata

  • Branch: chore/ci-optimize-coverage-report-parallel-workflow
  • Commit Message: chore(ci): investigate and optimize coverage report parallel workflow execution time
  • Milestone: v3.2.0
  • Parent Epic: #1678

Background and Context

The Build: configured coverage report to run in parallal workflow has been identified as one of the longest-running workflows in the CI pipeline. It has an average execution time of over 1 hour and 30 minutes, significantly impacting developer feedback loops and overall CI throughput.

Current Behavior

The Build: configured coverage report to run in parallal workflow consistently exceeds 1 hour 30 minutes of execution time, making it one of the slowest stages in the CI pipeline.

Expected Behavior

The workflow execution time should be reduced by at least 50% (i.e., to under 45 minutes) through targeted optimizations such as parallelization improvements, caching strategies, or test splitting.

Acceptance Criteria

  • The execution time of the Build: configured coverage report to run in parallal workflow is reduced by at least 50%.
  • All existing coverage reporting functionality is preserved and continues to produce accurate results.
  • CI pipeline stability is maintained — no new flaky tests or intermittent failures introduced.

Supporting Information

  • Workflow name: Build: configured coverage report to run in parallal
  • Average current execution time: >1 hour 30 minutes
  • Related Epic: #1678 (CI Execution Time Optimization — Timeouts, Concurrency, and Coverage Artifact Sharing)

Subtasks

  • Profile the current workflow to identify the primary bottlenecks (slow steps, sequential stages, redundant work)
  • Investigate parallelization opportunities within the coverage report workflow
  • Investigate caching strategies (e.g., dependency caching, intermediate artifact reuse)
  • Investigate test splitting to distribute coverage collection across parallel runners
  • Implement the chosen optimizations in the CI workflow configuration
  • Measure and document the execution time before and after optimization
  • Tests (Behave): Verify coverage report output remains accurate post-optimization
  • Tests (Robot): Add/update integration tests for CI workflow if applicable
  • Verify coverage >= 97% via nox -s coverage_report
  • Run nox (all default sessions), fix any errors

Definition of Done

This issue is complete when:

  • All subtasks above are completed and checked off.
  • The Build: configured coverage report to run in parallal workflow execution time is reduced by at least 50% (verified by comparing CI run durations before and after).
  • A Git commit is created where the first line of the commit message matches the Commit Message in Metadata exactly, followed by a blank line, then additional lines providing relevant details about the implementation.
  • The commit is pushed to the remote on the branch matching the Branch in Metadata exactly.
  • The commit is submitted as a pull request to master, reviewed, and merged before this issue is marked done.
  • All nox stages pass.
  • Coverage >= 97%.

Automated by CleverAgents Bot
Supervisor: Test Infrastructure | Agent: ca-new-issue-creator

## Metadata - **Branch**: `chore/ci-optimize-coverage-report-parallel-workflow` - **Commit Message**: `chore(ci): investigate and optimize coverage report parallel workflow execution time` - **Milestone**: v3.2.0 - **Parent Epic**: #1678 ## Background and Context The `Build: configured coverage report to run in parallal` workflow has been identified as one of the longest-running workflows in the CI pipeline. It has an average execution time of over 1 hour and 30 minutes, significantly impacting developer feedback loops and overall CI throughput. ## Current Behavior The `Build: configured coverage report to run in parallal` workflow consistently exceeds 1 hour 30 minutes of execution time, making it one of the slowest stages in the CI pipeline. ## Expected Behavior The workflow execution time should be reduced by at least 50% (i.e., to under 45 minutes) through targeted optimizations such as parallelization improvements, caching strategies, or test splitting. ## Acceptance Criteria - The execution time of the `Build: configured coverage report to run in parallal` workflow is reduced by at least 50%. - All existing coverage reporting functionality is preserved and continues to produce accurate results. - CI pipeline stability is maintained — no new flaky tests or intermittent failures introduced. ## Supporting Information - Workflow name: `Build: configured coverage report to run in parallal` - Average current execution time: >1 hour 30 minutes - Related Epic: #1678 (CI Execution Time Optimization — Timeouts, Concurrency, and Coverage Artifact Sharing) ## Subtasks - [ ] Profile the current workflow to identify the primary bottlenecks (slow steps, sequential stages, redundant work) - [ ] Investigate parallelization opportunities within the coverage report workflow - [ ] Investigate caching strategies (e.g., dependency caching, intermediate artifact reuse) - [ ] Investigate test splitting to distribute coverage collection across parallel runners - [ ] Implement the chosen optimizations in the CI workflow configuration - [ ] Measure and document the execution time before and after optimization - [ ] Tests (Behave): Verify coverage report output remains accurate post-optimization - [ ] Tests (Robot): Add/update integration tests for CI workflow if applicable - [ ] Verify coverage >= 97% via `nox -s coverage_report` - [ ] Run `nox` (all default sessions), fix any errors ## Definition of Done This issue is complete when: - All subtasks above are completed and checked off. - The `Build: configured coverage report to run in parallal` workflow execution time is reduced by at least 50% (verified by comparing CI run durations before and after). - A Git commit is created where the **first line** of the commit message matches the Commit Message in Metadata exactly, followed by a blank line, then additional lines providing relevant details about the implementation. - The commit is pushed to the remote on the branch matching the **Branch** in Metadata exactly. - The commit is submitted as a **pull request** to `master`, reviewed, and **merged** before this issue is marked done. - All nox stages pass. - Coverage >= 97%. --- **Automated by CleverAgents Bot** Supervisor: Test Infrastructure | Agent: ca-new-issue-creator
freemo added this to the v3.2.0 milestone 2026-04-03 00:11:52 +00:00
Author
Owner

Issue triaged by project owner:

  • State: Verified
  • MoSCoW: MoSCoW/Could Have — CI/test infrastructure improvement.

Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: ca-project-owner

Issue triaged by project owner: - **State**: Verified - **MoSCoW**: MoSCoW/Could Have — CI/test infrastructure improvement. --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: ca-project-owner
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Reference
cleveragents/cleveragents-core#1908
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