⚡️ Improve Python CI performance - #1944
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Exercise the reusable test workflow with a shared native build tree and retain the parallel coverage integration. Co-authored-by: Daniel Haag <121057143+denialhaag@users.noreply.github.com> Assisted-by: GPT-5.6 via Codex
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Replace the benchmark-only feature reference with the released workflow and update all reusable workflow pins consistently. Assisted-by: GPT-5.6 via Codex
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Summary
sysmoncore and parallel data collection centrally.The shared build directory lets the minimum- and regular-resolution nox sessions reuse the same CMake and Ninja state. On Windows, reusable workflows v2.2.1 initialize native MSVC and use Ninja so the existing job-local
sccacheinstallation is active.Evidence
The final test-only experiment passed on macOS and Windows in run 30434315809. The full Core CI run for the same source revision also passed on every supported runner in run 30434310296.
The strongest reuse was on Windows: after the minimum-resolution builds, all five regular-resolution sessions completed in 47 seconds and
sccachereported a 35.93% hit rate in run 30404816970.Validation
uv lock --check