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GH-49898: [C++][CI] Use mold in more builds#49899

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kou merged 1 commit into
apache:mainfrom
pitrou:gh49898-use-mold
Apr 29, 2026
Merged

GH-49898: [C++][CI] Use mold in more builds#49899
kou merged 1 commit into
apache:mainfrom
pitrou:gh49898-use-mold

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@pitrou pitrou commented Apr 29, 2026

Rationale for this change

We're currently using the mold linker only on a couple of C++ builds. This PR uses it in more builds to get faster link times and thus faster CI builds.

Are these changes tested?

Yes, by CI builds.

Are there any user-facing changes?

No.

We're currently using the mold linker only on a couple of C++ builds.
Use it in more builds to get faster link times and thus faster CI builds.
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pitrou commented Apr 29, 2026

@github-actions crossbow submit -g cpp

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Revision: eb0c13a

Submitted crossbow builds: ursacomputing/crossbow @ actions-4c03283919

Task Status
example-cpp-minimal-build-static GitHub Actions
example-cpp-minimal-build-static-system-dependency GitHub Actions
example-cpp-tutorial GitHub Actions
test-build-cpp-fuzz GitHub Actions
test-conda-cpp GitHub Actions
test-conda-cpp-valgrind GitHub Actions
test-debian-13-cpp-amd64 GitHub Actions
test-debian-13-cpp-i386 GitHub Actions
test-debian-experimental-cpp-gcc-15 GitHub Actions
test-fedora-42-cpp GitHub Actions
test-ubuntu-22.04-cpp GitHub Actions
test-ubuntu-22.04-cpp-bundled GitHub Actions
test-ubuntu-22.04-cpp-emscripten GitHub Actions
test-ubuntu-22.04-cpp-no-threading GitHub Actions
test-ubuntu-24.04-cpp GitHub Actions
test-ubuntu-24.04-cpp-bundled-offline GitHub Actions
test-ubuntu-24.04-cpp-gcc-13-bundled GitHub Actions
test-ubuntu-24.04-cpp-gcc-14 GitHub Actions
test-ubuntu-24.04-cpp-minimal-with-formats GitHub Actions
test-ubuntu-24.04-cpp-thread-sanitizer GitHub Actions

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pitrou commented Apr 29, 2026

@kou Could you take a look at this PR?

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+1

@github-actions github-actions Bot added awaiting merge Awaiting merge and removed awaiting review Awaiting review labels Apr 29, 2026
@kou kou merged commit 684c21e into apache:main Apr 29, 2026
50 of 52 checks passed
@kou kou removed the awaiting merge Awaiting merge label Apr 29, 2026
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After merging your PR, Conbench analyzed the 0 benchmarking runs that have been run so far on merge-commit 684c21e.

None of the specified runs were found on the Conbench server.

The full Conbench report has more details.

@pitrou pitrou deleted the gh49898-use-mold branch April 30, 2026 08:05
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After merging your PR, Conbench analyzed the 3 benchmarking runs that have been run so far on merge-commit 684c21e.

There were no benchmark performance regressions. 🎉

The full Conbench report has more details. It also includes information about 110 possible false positives for unstable benchmarks that are known to sometimes produce them.

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