[frontend_server] frontend_server_flutter_suite

Generally the test loads a big dill thats 90+% the same content as the
previous load, then verifies it.
This CL loads smarter and verifies less.

Before this CL, locally, running
pkg/frontend_server/test/frontend_server_flutter.dart took
real    24m56.080s
user    48m42.422s
sys     1m2.360s

and the suite edition (using 4 shards in isolates) took
real    15m9.196s
user    53m41.118s
sys     1m30.045s

With this CL, locally running
pkg/frontend_server/test/frontend_server_flutter.dart takes
real    5m0.206s
user    9m23.933s
sys     0m20.984s

and the suite edition takes
real    3m24.243s
user    12m0.069s
sys     0m28.131s

On the try-bot the runtime seems to have gone from ~40 minutes
to ~20 minutes, the "compile flutter tests" step from ~30 minutes to
~10 minutes and the portion of time actually running the
dart-code that compiles, loads and verifies, from ~26 minutes
to ~7 minutes.

Change-Id: I6db225c33e1c0ee817f3880327e720446150ad7d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/347282
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
8 files changed
tree: b5c57a42dc9a59b8ce9b3b5d78e78f1efb3ba864
  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. README.dart-sdk
  32. README.md
  33. sdk.code-workspace
  34. sdk_args.gni
  35. SECURITY.md
  36. 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 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.