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NEWS: small improvements

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66471 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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stomar 2018-12-20 22:54:36 +00:00
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@ -14,7 +14,7 @@ sufficient information, see the ChangeLog file or Redmine
=== Language changes === Language changes
* <code>$SAFE</code> is a process global state and we can set 0 again. [Feature #14250] * <code>$SAFE</code> is a process global state and we can set it to 0 again. [Feature #14250]
* refinements take place at block passing. [Feature #14223] * refinements take place at block passing. [Feature #14223]
@ -270,7 +270,7 @@ sufficient information, see the ChangeLog file or Redmine
[Regexp/String] [Regexp/String]
* Update Unicode version from 10.0.0 to 11.0.0 [Feature #14802] * Update Unicode version from 10.0.0 to 11.0.0. [Feature #14802]
This includes a rewrite of the grapheme cluster (/\X/) algorithm This includes a rewrite of the grapheme cluster (/\X/) algorithm
and special-casing for Georgian MTAVRULI on String#downcase. and special-casing for Georgian MTAVRULI on String#downcase.
@ -580,7 +580,7 @@ sufficient information, see the ChangeLog file or Redmine
* Speedup Proc#call because we don't need to care about <code>$SAFE</code> * Speedup Proc#call because we don't need to care about <code>$SAFE</code>
any more. [Feature #14318] any more. [Feature #14318]
With +lc_fizzbuzz+ benchmark which uses so many Proc#call we can With +lc_fizzbuzz+ benchmark which uses Proc#call many times we can
measure x1.4 improvements. [Bug #10212] measure x1.4 improvements. [Bug #10212]
* Speedup block.call where +block+ is passed block parameter. [Feature #14330] * Speedup block.call where +block+ is passed block parameter. [Feature #14330]
@ -589,11 +589,11 @@ sufficient information, see the ChangeLog file or Redmine
Additionally, Ruby 2.6 improves the performance of passed block calling. Additionally, Ruby 2.6 improves the performance of passed block calling.
* Introduce an initial implementation of JIT (Just-in-time) compiler. [Feature #14235] [experimental] * Introduce an initial implementation of a JIT (Just-in-time) compiler. [Feature #14235] [experimental]
* <tt>--jit</tt> command line option is added to enable JIT. <tt>--jit-verbose=1</tt> * <tt>--jit</tt> command line option is added to enable JIT. <tt>--jit-verbose=1</tt>
is good for inspection. See <tt>ruby --help</tt> for others. is good for inspection. See <tt>ruby --help</tt> for others.
* To generate machine code, this JIT compiler uses C compiler used for building * To generate machine code, this JIT compiler uses the C compiler used for building
the interpreter. Currently GCC, Clang, and Microsoft Visual C++ are supported for it. the interpreter. Currently GCC, Clang, and Microsoft Visual C++ are supported for it.
* <tt>--disable-mjit-support</tt> option is added to configure. This is added for JIT debugging, * <tt>--disable-mjit-support</tt> option is added to configure. This is added for JIT debugging,
but if you get an error on building a header file for JIT, you can use this option to skip but if you get an error on building a header file for JIT, you can use this option to skip
@ -609,8 +609,8 @@ sufficient information, see the ChangeLog file or Redmine
* timer thread is eliminated for platforms with POSIX timers [Misc #14937] * timer thread is eliminated for platforms with POSIX timers [Misc #14937]
* Transient Heap (theap) is supported. [Bug #14858] [Feature #14989] * Transient Heap (theap) is supported. [Bug #14858] [Feature #14989]
theap is managed heap for short-living memory objects. For example, theap is a managed heap for short-living memory objects. For example,
making small and short-living Hash object is x2 faster. With rdoc benchmark, making a small and short-living Hash object is x2 faster. With rdoc benchmark,
we measured 6-7% performance improvement. we measured 6-7% performance improvement.
* Native implementations (arm32, arm64, ppc64le, win32, win64, x86, amd64) of * Native implementations (arm32, arm64, ppc64le, win32, win64, x86, amd64) of