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libtest: utilize jobserver #48532

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libtest: utilize jobserver#48532
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A-libtestArea: `#[test]` / the `test` libraryC-feature-requestCategory: A feature request, i.e: not implemented / a PR.T-libsRelevant to the library team, which will review and decide on the PR/issue.

Description

@ishitatsuyuki
ishitatsuyuki
opened on Feb 25, 2018

Tests are normally CPU consuming tasks, and we can transparently utilize jobserver to achieve efficient core utilization.

Some usecases I can think of:

  • Tests which may spawn threads (including rustc codegen-units, but not limited to)
  • Using a parent make somewhere

Activity

  1. estebank
    added
    A-libtestArea: `#[test]` / the `test` library
    on Feb 25, 2018
  2. XAMPPRocky
    added
    C-enhancementCategory: An issue proposing an enhancement or a PR with one.
    T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue.
    on May 14, 2018
  3. Mark-Simulacrum
    added
    T-libs-api[DEPRECATED; DO NOT USE]
    and removed
    T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue.
    on Jun 3, 2018
  4. jonas-schievink
    added
    C-feature-requestCategory: A feature request, i.e: not implemented / a PR.
    and removed
    C-enhancementCategory: An issue proposing an enhancement or a PR with one.
    on Apr 20, 2020

  5. gilescope commented on Jun 3, 2023

    @gilescope
    gilescope
    on Jun 3, 2023
    Contributor

    Not having this was the reason why Alex said that parallel test running PRs could not be accepted into cargo, so this would unblock parallel testing across multiple crates.

  6. epage
    added this to testing-devex backlogon Oct 25, 2023
  7. clarfonthey
    added
    T-libsRelevant to the library team, which will review and decide on the PR/issue.
    and removed
    T-libs-api[DEPRECATED; DO NOT USE]
    on Aug 12, 2026
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    A-libtestArea: `#[test]` / the `test` libraryC-feature-requestCategory: A feature request, i.e: not implemented / a PR.T-libsRelevant to the library team, which will review and decide on the PR/issue.

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