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dart / sdk / bda10d798700e6178f58d553160f8201674f06dd
commitbda10d798700e6178f58d553160f8201674f06dd[log] [tgz]
authorJens Johansen <jensj@google.com>Wed May 31 06:22:19 2023 +0000
committerCommit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed May 31 06:22:19 2023 +0000
treed7138945b09013316199da48515a0fee9781e905
parent7c83e8ad4a67cb4cb3d628d59c6df237cae3ee73 [diff]
[analyzer] Cache `FeatureSet`s

This CL caches `FeatureSet`s (really `ExperimentStatus`s) in the
FeatureSetProvider.

When analyzing rwf-materials (562 contexts) with a filled cache I get
these numbers:

Before:
509,901 instances of `ExperimentStatus`.
Current memory: 3.21GB.
Peak memory: 3.24GB.
Heap: 2.61GB of 2.68GB.

After:
2,246 instances of `ExperimentStatus`.
Current memory: 2.80GB
Peak memory: 2.85GB
Heap: 2.21GB of 2.28GB

Difference:
Instances: -99.55%.
Current memory: -12.77%.
Peak memory: -12.03%.
Heap: -15.32% (used); -14.92% (size).
Change-Id: I3901310eed70733f8bd06ad81bf940b848734723
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/306460
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
1 file changed
tree: d7138945b09013316199da48515a0fee9781e905
  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. .vpython
  22. AUTHORS
  23. BUILD.gn
  24. CHANGELOG.md
  25. codereview.settings
  26. CONTRIBUTING.md
  27. DEPS
  28. LICENSE
  29. OWNERS
  30. PATENT_GRANT
  31. PRESUBMIT.py
  32. README.dart-sdk
  33. README.md
  34. sdk.code-workspace
  35. sdk_args.gni
  36. SECURITY.md
  37. WATCHLISTS
README.md

Dart

A client-optimized language for fast apps on any platform

Dart is:

  • Optimized for UI: Develop with a programming language specialized around the needs of user interface creation.

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

  • Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web.

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 on our wiki.

Contributing to Dart

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

You can also contribute patches, as described in Contributing.