Enable safe test parallelization across SDK test assemblies - #56015
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Evangelink wants to merge 19 commits into
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Enable safe test parallelization across SDK test assemblies#56015Evangelink wants to merge 19 commits into
Evangelink wants to merge 19 commits into
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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Run the audited task test projects at class-level parallel scope and serialize classes that mutate process-wide current directory or environment state. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Use class-level MSTest parallelization while keeping process-current-directory writers in the serial tail. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Audit and isolate process-wide test state before enabling class-level MSTest parallelization. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: ddac1b22-140c-4585-9b63-32d4dce29ae7
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: ddac1b22-140c-4585-9b63-32d4dce29ae7
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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: ddac1b22-140c-4585-9b63-32d4dce29ae7
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: ddac1b22-140c-4585-9b63-32d4dce29ae7
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: ddac1b22-140c-4585-9b63-32d4dce29ae7
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: ddac1b22-140c-4585-9b63-32d4dce29ae7
This was referenced Aug 31, 2026
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Note
This combined draft has been superseded by smaller, independent PRs aligned with CODEOWNERS. Please review the replacement PR for the relevant area instead.
Replacement PRs
@dotnet/nuget-team)@dotnet/templating-engine-maintainers)@dotnet/area-infrastructure-libraries)@dotnet/sdk-container-builds-maintainers)@dotnet/aspnet-blazor-eng)@dotnet/razor-tooling)@vijayrkn)@dotnet/run-file)dotnet testparser (@dotnet/dotnet-testing)@dotnet/net-sdk-workload-contributors)@dotnet/illink)@dotnet/dotnet-analyzers)Performance/setup work remains separately tracked by standalone PR #56016.
Validation context
The combined branch was audited across process globals, environment/current-directory/console state, static caches, shared paths, ports/daemons, and fixtures/data rows. Its final-scope Razor-fixed iteration completed in 5,426.805s versus 14,445.996s at baseline (62.43% faster), with the same expected 10 failing projects, 0 timeouts, and 116 primary-runner failures. Each replacement remains draft while its area-specific validation and review are completed.