diff options
| author | k0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-02-24 01:05:20 +0000 |
|---|---|---|
| committer | k0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-02-24 01:05:20 +0000 |
| commit | e5d5cc4a882504b1ab11312bd7c1a1682c5ebf73 (patch) | |
| tree | e59ed0fd2864a4938353f5a6433be73ac57bf0c2 | |
| parent | 35ab341cf2dd63a98e9c86a17c2dbb5aa11f31a4 (diff) | |
NEWS: elaborate on JIT for 2.6.0-preview1 [ci skip]
This information is backported from the draft of 2.6.0-preview1 release
note. NEWS for final 2.6.0 release will be different.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62552 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
| -rw-r--r-- | NEWS | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -98,7 +98,13 @@ with all sufficient information, see the ChangeLog file or Redmine Ruby 2.5 improves block passing performance. [Feature #14045] Additionally, Ruby 2.6 improves the performance of passed block calling. -* `--jit` option to enable JIT compiler is added. [Feature #14235] [experimental] +* Introduce an initial implementation of JIT (Just-in-time) compiler. [Feature #14235] [experimental] + * `--jit` option is added to enable JIT. `--jit-verbose=1` is good for inspection. See `ruby --help` for others. + * This JIT relies on C compiler used to build Ruby, on runtime. Only gcc and clang are supported for the JIT + for now, and MinGW support has some issues. + * As of 2.6.0-preview1, we're just preparing infrastructure for JIT and very few optimizations are implemented. + So it's not ready for benchmarking Ruby's JIT performance yet. It's known that current JIT enablement makes + Rails application slower for now. * VM generator script renewal; makes the generated VM more optimized. [GH-1779] |