* gc.c: simplify threshold of GC caused by malloc_increase.
  Now, malloc_limit is increased/decreased by mysterious logic.
  This fix simplify malloc_limit increase/decrease logic such as:
  if (malloc_increase > malloc_limit) /* so many malloc */
  malloc_limit += malloc_limit * (GC_MALLOC_LIMIT_FACTOR-1);
  else
  malloc_limit -= malloc_limit * (GC_MALLOC_LIMIT_FACTOR-1)/4;
  Default value of GC_MALLOC_LIMIT_FACTOR is 1.8.
  malloc_limit is bounded by GC_MALLOC_LIMIT_MAX (256MB by default).
  This logic runs at before_sweeep(). So there are no effect from
  caused by lazy sweep. And we can remove malloc_increase2.
* gc.c (HEAP_MIN_SLOTS, FREE_MIN, HEAP_GROWTH_FACTOR): rename to
  GC_HEAP_MIN_SLOTS, GC_FREE_MIN, GC_HEAP_GROWTH_FACTOR respectively.
  Check them by `#ifndef' so you can specify these values outside gc.c.
* gc.c (ruby_gc_params_t): add initial_malloc_limit_factor and
  initial_malloc_limit_max.
* gc.c (vm_malloc_prepare, vm_xrealloc): use vm_malloc_increase to
  add and check malloc_increase.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43067 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c: add some fine-grained profiling codes to tuning marking phase.
  If you enable RGENGC_PRINT_TICK to 1, then profiling results by RDTSC
  (on x86/amd64 environment) are printed at last.
  Thanks Yoshii-san.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43068 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* remove trailing spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43069 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (gc_before_sweep): cast to size_t to suppress warnings.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43070 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (GC_MALLOC_LIMIT): 8,000,000 -> 8 * 1,024 * 1,024.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43071 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c: add two GC tuning environment variables.
  RUBY_GC_MALLOC_LIMIT_MAX and RUBY_GC_MALLOC_LIMIT_GROWTH_FACTOR.
  See r43067 for details.
* gc.c (rb_gc_set_params): refactoring. And change verbose notation.
  Mostly duplicated functions get_envparam_int/double is not cool.
  Please rewrite it.
* test/ruby/test_gc.rb: fix a test for this change.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43072 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
[DOC]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43073 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/curses/extconf.rb: check the size of chtype.

* ext/curses/curses.c (NUM2CH, CH2NUM): use proper macros for
  the size of chtype.

[ruby-core:56090] [Bug #8659]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43074 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-09-28

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43075 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* remove trailing spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43076 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/dl/test_base.rb: {libc, libm} detection now handle GNU/Hurd
  correctly. Patch by Gabriele Giacone (1o5g4r8o@gmail.com).
* test/fiddle/helper.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43077 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added ticket number

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43078 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
math.c: fix for Bignum argument

* math.c (math_log, math_log2, math_log10): fix for Bignum argument.
  numbits should be add only when right shifted.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43080 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_insnhelper.c (vm_callee_setup_arg_complex, vm_yield_setup_block_args):
  clear keyword arguments to prevent GC bug which occurs
  while marking VM stack.
  [ruby-dev:47729] [Bug #8964]

* test/ruby/test_keyword.rb: tests for the above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43081 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-09-29

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43082 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: fix inconsistency with literals

* parse.y (rb_id_attrset): fix inconsistency with literals, allow
  ID_ATTRSET and return it itself, but ID_JUNK cannot make ID_ATTRSET.
  and raise a NameError instead of rb_bug() for invalid argument.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43083 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ChangeLog: remove duplicated entry

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43084 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: allow junk attrset

* parse.y (rb_id_attrset, intern_str): allow junk attrset ID for
  Struct.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43085 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
array.c: minor performance improvement

* array.c (sort_2): minor performance improvement by replacing
  rb_funcall() with rb_funcallv.

* array.c (rb_ary_bsearch, recursive_cmp, rb_ary_cycle_size): ditto.

* array.c (descending_factorial, binomial_coefficient): ditto.

* array.c (rb_ary_repeated_permutation_size): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43086 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
fix typos

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43087 b2dd03c8-39d4-4d8f-98ff-823fe69b080e