Specified by the following environment variaables:
- RUBY_THREAD_VM_STACK_SIZE: vm stack size used at thread creation.
default: 128KB (32bit CPU) or 256KB (64bit CPU).
- RUBY_THREAD_MACHINE_STACK_SIZE: machine stack size used at thread
creation. default: 512KB or 1024KB.
- RUBY_FIBER_VM_STACK_SIZE: vm stack size used at fiber creation.
default: 64KB or 128KB.
- RUBY_FIBER_MACHINE_STACK_SIZE: machine stack size used at fiber
creation. default: 256KB or 256KB.
This values are specified at launched timing. You can not change
these values at running time.
Environ variables are only *hints* because:
- They are aligned to 4KB.
- They have minimum values (depend on OSs).
- Machine stack settings are ignored by some OSs.
Default values especially fiber stack sizes are increased.
This change affect Fiber's behavior:
(1) You can run more complex program on a Fiber.
(2) You can not make many (thousands) Fibers because of
lack of address space (on 32bit CPU).
If (2) bothers you,
(a) Use 64bit CPU with big memory, or
(b) Specify RUBY_FIBER_(VM|MACHINE)_STACK_SIZE correctly.
You need to choose correct stack size carefully. These values
are completely rely on systems (OS/compiler and so on).
* vm_core.h (rb_vm_t::default_params): add to record above settings.
* vm.c (RubyVM::DEFAULT_PARAMS): add new constant to see
above setting.
* thread_pthread.c: support RUBY_THREAD_MACHINE_STACK_SIZE.
* cont.c: support RUBY_FIBER_(VM|MACHINE)_STACK_SIZE.
* test/ruby/test_fiber.rb: add tests for above.
* test/ruby/test_thread.rb: ditto.
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for parser.
reported by whiteleaf at [ruby-list:49085] [ruby-dev:46738]
[Bug #7562]
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and test failure in TestMarshal#test_gc and test_context_switch
on SPARC Solaris 10 compiled with Oracle Solaris Studio 12.3.
[Bug #7591] [ruby-dev:46772]
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maintainability.
* test/rubygems/test_gem_commands_query_command.rb: Note default gems
in gem list details.
* lib/rubygems/uninstaller.rb: Detect all gems for uninstallation.
This allows duplicate installs of default gems to be removed.
* lib/rubygems/specification.rb: Allow use of ::each_spec.
* lib/rubygems/test_case.rb: Added install_default_gems.
* test/rubygems/test_gem_commands_uninstall_command.rb: Moved test
down to the uninstaller tests.
* test/rubygems/test_gem_uninstaller.rb: Test for uninstallation of
default gems and duplicate default gems.
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On parallel test-all, trace event may fire on another threads
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because it is for waiting until io readable.
* io.c (rb_io_wait_writable): always use rb_thread_fd_writable()
instaed of bare rb_wait_for_single_fd(). we shouldn't ignore
return value.
* io.c (rb_io_wait_readable): ditto. always use rb_thread_wait_fd().
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setting encoding. This allows ruby executables to be parsed as ruby
files.
* test/rdoc/test_rdoc_encoding.rb: Test for above.
* lib/rdoc/parser.rb: Set the parser file name of ruby executables
correctly.
* test/rdoc/test_rdoc_parser.rb: Test for above.
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the heredoc identifier is followed by a line-end. This allows proper
display of some HEREDOCs in source view.
* lib/rdoc/ruby_token.rb: Added TkHEREDOC
* test/rdoc/test_rdoc_ruby_lex.rb: Test for above.
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TAG_JUMP() with TAG_FATAL (ex. rb_fatal()).
* test/ruby/test_fiber.rb (test_fatal_in_fiber): add a test for above.
* ext/-test-/fatal/extconf.rb, ext/-test-/fatal/rb_fatal.c: ditto.
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with multiple version specifiers.
* test/rubygems/test_gem_ext_cmake_builder.rb: Only look for specific
lines in cmake output. Should fix [ruby-trunk - Bug #7579]
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countermeasure for the BEAST attack by default. The default options
of OpenSSL::SSL:SSLContext are now:
OpenSSL::SSL::OP_ALL & ~OpenSSL::SSL::OP_DONT_INSERT_EMPTY_FRAGMENTS
[Bug #5353] [ruby-core:39673]
* test/openssl/test_ssl.rb: Adapt tests to new SSLContext default.
* NEWS: Announce the new default.
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This method type is for optimized CFUNC such as Fixnum#+ and so on.
This feature is half-baked and no way to use them.
[Background]
Now, VM has opt_plus instructions to optimize `+' methods for
some Classes (such as Fixnum, Float (flonum)). We call this
type of instructions as `specialized instructions'.
This simple technique improve simple program dramatically.
However, we can make specialized instructions for only several
types (classes) and selectors (method names) because a large
instruction will be slow. In other words, this technique has no
extensibility.
To overcome this problem, VM_METHOD_TYPE_CFUNC_FRAMELESS was
introduced (r37198). This type is a variant of CFUNC, but called
their functiions directly without building a method frame.
Any CFUNC method can be defined as frameless methods if a method
is not needed to make method frame. Frameless methods are faster
as specialized instructions (a bit slower, but no need to care).
No problem described at
http://charlie.bz/blog/why-do-singleton-methods-make-ruby-slow
because this technique doesn't see class, but see method body
itself. Alias is also no problem.
[Problem]
However, we can't set frameless method type for polymorphic methods
such as Array#[]. Necessity for method frame depends on which
parameter type. For example, Fixnum#+ needs method frame if
coerce is needed. Current VM_METHOD_TYPE_CFUNC_FRAMELESS is not
flexible and need more tuning to introduce it.
Expected behavior of frameless method type may be:
result = optimized_cfunc(params); /* call optimized cfunc */
if (result == Qundef) { result = normal_cfunc(); }
This is why I say this feature is half-baked.
We need to learn primitive method in Smalltalk more.
(I heard this name at RubyConf Taiwan this month. Thanks!)
[Conclusion]
Nobody may use this feature and there is no compatibility issue.
This feature goes to next minor (2.1?).
* proc.c (rb_method_entry_arity): ditto.
* vm_eval.c, vm_insnhelper.c, vm_method.c: ditto.
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singleton class. `set_trace_func' passed attached class (which is
attached/modified by singleton class) by 6th block parameter if it
is singleton class. Previous behavior follows this spec.
However, this method named `defined_class' should return singleton
class directly because singleton methods are defined in singleton
class. There are no compatible issue because TracePoint is introduced
after 2.0.
But compatiblity with `set_trace_func' is brokne. This means that
you can not replace all `set_trace_func' code with TracePoint
without consideration of this behavior.
[Bug #7554]
* test/ruby/test_settracefunc.rb: change a test to catch up
an above chagne.
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