Allow setting the Blaze server's QoS class via a --macos_qos_class flag.

This adds a new flag to set the QoS class of the Bazel server and accepts
selecting any of the possible classes exposed by the system.  We will use
this flag to evaluate the behavior of Bazel under different classes because
it is not clear which one we should be using.  (We tried forcing the class
to be utility, but that caused regressions in some cases.)

This is essentially a retry of https://github.com/bazelbuild/bazel/commit/087734009801242b83655efb863b2d5a761ae3dc but gated by a flag (which
is how it should have been done in the first place).

Note that the flag exists on all platforms to ensure that a bazelrc file
shared across different people works in all cases, but this flag is ignored
in non-macOS systems.

Addresses https://github.com/bazelbuild/bazel/issues/7446.

RELNOTES: None.
PiperOrigin-RevId: 238440116
12 files changed
tree: a1edc1fb9184beef0892d1a47ffb792090cfef41
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. BUILD
  12. CHANGELOG.md
  13. CODEOWNERS
  14. combine_distfiles.py
  15. combine_distfiles_to_tar.sh
  16. compile.sh
  17. CONTRIBUTING.md
  18. CONTRIBUTORS
  19. distdir.bzl
  20. ISSUE_TEMPLATE.md
  21. LICENSE
  22. README.md
  23. WORKSPACE
README.md

Bazel

{Fast, Correct} - Choose two

Build and test software of any size, quickly and reliably.

  • Speed up your builds and tests: Bazel only rebuilds what is necessary. With advanced local and distributed caching, optimized dependency analysis and parallel execution, you get fast and incremental builds.

  • One tool, multiple languages: Build and test Java, C++, Android, iOS, Go, and a wide variety of other language platforms. Bazel runs on Windows, macOS, and Linux.

  • Scalable: Bazel helps you scale your organization, codebase, and continuous integration solution. It handles codebases of any size, in multiple repositories or a huge monorepo.

  • Extensible to your needs: Easily add support for new languages and platforms with Bazel's familiar extension language. Share and re-use language rules written by the growing Bazel community.

Getting Started

Documentation

Contributing to Bazel

See CONTRIBUTING.md

Build status

Bazel is released in ‘Beta’. See the product roadmap to learn about the path toward a stable 1.0 release.