Google Git
Sign in
dart / sdk / b4b1d5ddac76689a58bb074f060162f31862b91b
commitb4b1d5ddac76689a58bb074f060162f31862b91b[log] [tgz]
authorAlexander Markov <alexmarkov@google.com>Fri Aug 16 19:31:40 2019 +0000
committercommit-bot@chromium.org <commit-bot@chromium.org>Fri Aug 16 19:31:40 2019 +0000
tree679f4f36decd2c77ee993b949cfe4835ed7860e4
parent1644d4b178485ebe971c02410d244e79634f99b4 [diff]
[vm/bytecode] Avoid eagerly reading all bytecode in app-jit snapshots

Reading all bytecode results in significantly higher memory usage due to
more classes finalized and more Function, Field, OneByteString, ObjectPool
and Bytecode objects.

dart2js-compile/CompileHelloMemoryUse benchmark with bytecode:
heap.old.capacity.max 121.387 -> 112.016 MB

Change-Id: Ic702a1c61613e1fc0c2d1f0b3a972da238bab838
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/113140
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2 files changed
tree: 679f4f36decd2c77ee993b949cfe4835ed7860e4
  1. .github/
  2. benchmarks/
  3. build/
  4. client/
  5. docs/
  6. pkg/
  7. runtime/
  8. samples/
  9. samples-dev/
  10. sdk/
  11. tests/
  12. third_party/
  13. tools/
  14. utils/
  15. .clang-format
  16. .gitattributes
  17. .gitconfig
  18. .gitignore
  19. .gn
  20. .mailmap
  21. .packages
  22. .style.yapf
  23. .vpython
  24. AUTHORS
  25. BUILD.gn
  26. CHANGELOG.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. DEPS
  30. LICENSE
  31. PATENT_GRANT
  32. PRESUBMIT.py
  33. README.dart-sdk
  34. README.md
  35. 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 has 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 the dart.dev to learn more about the language, tools, getting started, and more.

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

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.