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Jens Johansen 60029641af [analyzer] Train snapshot more than --help
The analyzer snapshot is currently "trained" with `--help`, i.e. not
really trained at all.
Doing some archaeology, it actually used to be trained, but it was
disabled in https://dart-review.git.corp.google.com/c/sdk/+/77228
because of Fuchsia issues
(https://github.com/dart-lang/sdk/issues/34616).
Although the troublesome stuff was perhaps fixed in
https://dart-review.git.corp.google.com/c/sdk/+/77422 it was seemingly
never re-enabled.

That was 2018.

This CL re-enables it, taking an initial uncached analysis of dart2js to ~51% (~9.5s vs ~18.6s), of the analyzer to ~75% (~22.2s vs ~29.6) and of the front_end to ~50% (~7.7s vs ~15.2s).

This won’t change the peak performance of the analyzer, but will
certainly - as seen above - make it faster when first loaded.

Change-Id: I613e6a5b52d00da15948cf936f20ea36ad28818e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/269683
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
2022-11-15 10:49:51 +00:00
.dart_tool [infra] re-land work to auto-generate .dart_tool/package_config.json 2022-04-12 17:21:02 +00:00
.github [infra] enable a no-response issue triage bot 2022-11-12 01:38:20 +00:00
benchmarks [benchmarks] Add LongStringCompare benchmark that measure string comparison performance. 2022-11-11 23:22:58 +00:00
build [dart2wasm] Build product snapshot when building for the SDK. 2022-10-26 17:04:17 +00:00
docs Add a link to the announce group 2022-07-21 09:45:06 +00:00
pkg [cfe] Remove use of the AST-based class hierarchy from the inferrer 2022-11-15 10:44:10 +00:00
runtime [vm/ffi] Add Dart_IsNull in dart_api_dl.h 2022-11-15 10:32:16 +00:00
samples [vm/ffi] Add Dart_IsNull in dart_api_dl.h 2022-11-15 10:32:16 +00:00
sdk [dart2wasm] Move low-level int/double intrinsics to base classes 2022-11-14 15:50:20 +00:00
tests [vm/ffi] Add Dart_IsNull in dart_api_dl.h 2022-11-15 10:32:16 +00:00
third_party [standalone] Update tcmalloc to 2.10. 2022-07-06 17:34:20 +00:00
tools [OWNERS] Fix VM owners file entries. 2022-11-11 20:25:03 +00:00
utils [analyzer] Train snapshot more than --help 2022-11-15 10:49:51 +00:00
.clang-format
.gitattributes [web] rename suite dart2js -> web. 2021-02-04 23:11:32 +00:00
.gitconfig
.gitignore [test_runner] Create --write-logs dir, add default dir to .gitignore 2022-11-15 09:59:08 +00:00
.gn [infra] Migrate scripts to python3 2021-04-15 10:10:20 +00:00
.mailmap Fixed various typos in a lot of files 2022-07-25 12:21:59 +00:00
.style.yapf
.vpython
AUTHORS Simplify the license situation 2022-09-14 21:06:22 +00:00
BUILD.gn [dart2wasm] Build product snapshot when building for the SDK. 2022-10-26 17:04:17 +00:00
CHANGELOG.md drop unneeded changelog entry 2022-11-11 00:33:31 +00:00
codereview.settings [infra] Default presubmits to use python3 2021-08-24 08:20:47 +00:00
CONTRIBUTING.md Add more details to contributing docs 2022-03-16 07:56:58 +00:00
DEPS [co19] Roll co19 to 19439c0d58a0df422c4acc4ae97a3deeb98d0f67 2022-11-15 10:22:02 +00:00
LICENSE Update LICENSE 2021-04-08 07:57:10 +00:00
OWNERS [owners] update the top-level owners file 2022-11-11 21:03:52 +00:00
PATENT_GRANT
PRESUBMIT.py Make presubmit on Dart files check for default value separator. 2022-09-09 12:34:34 +00:00
README.dart-sdk Updates to analyze_snapshot tool 2022-08-23 12:18:00 +00:00
README.md master => main 2021-09-10 08:02:49 +00:00
sdk_args.gni Fix typos 2022-06-15 11:08:28 +00:00
SECURITY.md Add link to published advisories 2022-02-08 19:45:07 +00:00
WATCHLISTS [dart2wasm] Update WATCHLISTS for dart2wasm-team@. 2022-11-10 17:00:40 +00:00

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.