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GeezerVison is showing github.com — Add CodSpeed performance benchmarking by codspeed[bot] · Pull Request #189 · uutils/diffutils

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@codspeed

@codspeed codspeed Bot commented Mar 7, 2026

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Summary

  • Added a CodSpeed GitHub Actions workflow (.github/workflows/codspeed.yml) that runs the existing divan benchmarks on every push to main, on pull requests, and on manual dispatch
  • The repository already had codspeed-divan-compat v4.3.0 configured as a dev dependency with 26 benchmarks covering cmp, diff, and parser operations
  • Added the CodSpeed badge to the README

Changes

  • .github/workflows/codspeed.yml: New workflow that builds and runs benchmarks using cargo-codspeed with simulation mode, authenticated via OIDC
  • README.md: Added CodSpeed performance badge alongside existing badges

Next steps

  1. Merge this PR to start collecting baseline performance data on main
  2. CodSpeed will automatically post performance reports on future pull requests
  3. Visit CodSpeed dashboard to view benchmark results and flame graphs

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@codspeed
Add CodSpeed performance benchmarking workflow and badge
8176e4e
@codspeed

codspeed Bot commented Mar 7, 2026

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Congrats! CodSpeed is installed 🎉

🆕 26 new benchmarks were detected.

You will start to see performance impacts in the reports once the benchmarks are run from your default branch.

Detected benchmarks
  • cmd_cmp_gnu_equal[100]: 12.7 µs
  • cmd_diff_gnu_equal[1000]: 12.4 µs
  • cmd_diff_gnu_equal[10000]: 12.8 µs
  • cmp_compare_files_equal[100]: 169.3 µs
  • cmd_diff_release_equal[25000]: 13.3 µs
  • cmd_diff_release_equal[1000]: 13.5 µs
  • cmp_compare_files_equal[25000]: 38.1 ms
  • cmd_cmp_gnu_equal[10000]: 12 µs
  • cmd_diff_release_equal[100]: 14.4 µs
  • cmd_cmp_gnu_equal[25000]: 12 µs
  • cmd_cmp_release_equal[100]: 13.6 µs
  • diff_parser: 3 ms
  • cmd_cmp_release_equal[10000]: 13.1 µs
  • cmp_compare_files_different[100]: 58.4 µs
  • cmp_compare_files_equal[1000]: 1.5 ms
  • cmd_cmp_release_equal[25000]: 12.9 µs
  • cmp_parser: 5.3 µs
  • cmp_compare_files_different[10000]: 3.8 ms
  • cmd_diff_gnu_equal[25000]: 12.1 µs
  • cmd_cmp_release_equal[1000]: 13.4 µs
  • ...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

Open in CodSpeed
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@codspeed
codspeed Bot marked this pull request as ready for review March 7, 2026 14:09
@sylvestre
sylvestre merged commit 59e130a into main Mar 7, 2026
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@codecov

codecov Bot commented Mar 7, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (54c8b7a) to head (8176e4e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files 
@@     Coverage Diff     @@
##   main   #189   +/-   ##
===========================
===========================

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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@sylvestre
sylvestre deleted the codspeed-wizard-1772892219245 branch March 10, 2026 08:08
@BrewTestBot BrewTestBot mentioned this pull request Oct 23, 2026
uutils-diffutils 0.6.0 Homebrew/homebrew-core#320660
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@sylvestre
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