feat(ci): cap native check.yml parallelism at nproc/2 #313

Merged

David merged 1 commit from feat/GOV-10-native-check-nproc-cap into main

2026-06-19 11:06:40 +02:00

David commented

2026-06-19 10:48:17 +02:00

Owner

What

Adds the governance nproc/2 CARGO_BUILD_JOBS cap to the native check.yml and integration.yml workflows as a Cap build parallelism step, placed after the toolchain install / cache and before the first cargo step.

Why

Both workflows run cargo directly on the runner host (not inside Docker), so cargo defaulted to the full host nproc and oversubscribed the runner whenever a sibling job shared the same host. The governance nproc/2 cap (governance/CI.md "Concurrency cap") was already wired into the containerized build workflows via a Docker --build-arg, but the native check / integration path was never covered. This closes that gap for this repo.

How

Exports CARGO_BUILD_JOBS=$(($(nproc) / 2)) to $GITHUB_ENV, which every later cargo step in the job inherits. Matches the governance templates/forgejo-workflows/check.yml reference and the proven umbra form. Rollout of GOV-10 AC 4.

## What Adds the governance `nproc/2` `CARGO_BUILD_JOBS` cap to the native `check.yml` and `integration.yml` workflows as a `Cap build parallelism` step, placed after the toolchain install / cache and before the first `cargo` step. ## Why Both workflows run `cargo` directly on the runner host (not inside Docker), so cargo defaulted to the full host `nproc` and oversubscribed the runner whenever a sibling job shared the same host. The governance `nproc/2` cap (`governance/CI.md` "Concurrency cap") was already wired into the containerized build workflows via a Docker `--build-arg`, but the native check / integration path was never covered. This closes that gap for this repo. ## How Exports `CARGO_BUILD_JOBS=$(($(nproc) / 2))` to `$GITHUB_ENV`, which every later `cargo` step in the job inherits. Matches the governance `templates/forgejo-workflows/check.yml` reference and the proven `umbra` form. Rollout of GOV-10 AC 4.

David added 1 commit

2026-06-19 10:48:17 +02:00

feat(ci): cap native check.yml + integration.yml parallelism at nproc/2

E2E / Playwright against staging (pull_request) Failing after 39s

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Check / fmt + clippy + compile + unit/doc tests (pull_request) Successful in 1m16s

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Integration / integration tests (pull_request) Successful in 5m40s

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3f7e38de83

check.yml + integration.yml runs cargo directly on the runner host, so cargo defaulted to the full host nproc and oversubscribed the runner whenever a sibling job shared the same host. Add the governance nproc/2 cap (governance CI.md "Concurrency cap") as a "Cap build parallelism" step that exports CARGO_BUILD_JOBS=$(($(nproc) / 2)) to $GITHUB_ENV, placed after the toolchain install/cache and before the first cargo step. Matches the governance templates/forgejo-workflows/check.yml reference and the proven umbra form.

#GOV-10