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dart / sdk / 326e32a167f22152d0420740e3a4bd48f7a44ce1
commit326e32a167f22152d0420740e3a4bd48f7a44ce1[log] [tgz]
authorRyan Macnak <rmacnak@google.com>Tue Apr 22 11:34:41 2025 -0700
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Apr 22 11:34:41 2025 -0700
treeee90cd01035fe3730821b2a8336786ac3e5fa4ad
parent715f756c88336f6abc9b2d99f5a5fc3df9273e05 [diff]
[build] Limit the number of concurrent dart/gen_snapshot actions.

Ninja may be run with a large --jobs value to run more C/C++ compilation actions in parallel on remote workers. The dart and gen_snapshot actions during the build should in this case remain limited to the number of cores on the machine to avoid a coincident memory usage that is too high.

When running in the Dart tree with RBE, limit this by changing the RBE exec_strategy away from racing. Otherwise, use a pool to limit the concurrency of this action type.

TEST=build.py --no-rbe -j1000
Bug: https://github.com/flutter/flutter/issues/164591
Change-Id: Ia5e5615d0067b34d49871f26ead074cb891baf70
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/423562
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
5 files changed
tree: ee90cd01035fe3730821b2a8336786ac3e5fa4ad
  1. .dart_tool/
  2. .github/
  3. benchmarks/
  4. build/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  9. sdk/
  10. tests/
  11. third_party/
  12. tools/
  13. utils/
  14. .clang-format
  15. .gitattributes
  16. .gitconfig
  17. .gitignore
  18. .gn
  19. .mailmap
  20. .style.yapf
  21. AUTHORS
  22. BUILD.gn
  23. CHANGELOG.md
  24. codereview.settings
  25. CONTRIBUTING.md
  26. DEPS
  27. LICENSE
  28. OWNERS
  29. PATENT_GRANT
  30. PRESUBMIT.py
  31. pubspec.yaml
  32. README.dart-sdk
  33. README.md
  34. sdk.code-workspace
  35. sdk_args.gni
  36. sdk_packages.yaml
  37. SECURITY.md
  38. WATCHLISTS
README.md

Dart

An approachable, portable, and productive language for high-quality apps on any platform

Dart is:

  • Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.

  • Portable: Compile to ARM, x64, or RISC-V machine code for mobile, desktop, and backend. Compile to JavaScript or WebAssembly for the web.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app. Diagnose app issues using DevTools.

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

  • Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.

  • Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).

Dart platforms illustration

License & patents

Dart is free and open source.

See LICENSE and PATENT_GRANT.

Using Dart

Visit dart.dev to learn more about the language, tools, and to find codelabs.

Browse pub.dev for more packages and libraries contributed by the community and the Dart team.

Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents in our repo at docs.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.

Roadmap

Future plans for Dart are included in the combined Dart and Flutter roadmap on the Flutter wiki.