make and register special exceptions.
* vm.c (rb_vm_mark): do not need to mark special exceptions
because they are registerd by rb_gc_register_mark_object().
* eval.c (Init_eval): use rb_vm_register_special_exception().
* gc.c (Init_GC): ditto.
* proc.c (Init_Proc): ditto.
* thread.c (Init_Thread): ditto.
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This function is similar to rb_gc_mark_locations(), but not
conservertive.
* internal.h: ditto.
* vm.c (env_mark): use rb_gc_mark_values() because env values should
be Ruby VALUEs.
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* gc.c (gc_mark): add gc_mark_ptr() to skip is_markable_object()
check. gc_mark_maybe() can use gc_mark_ptr() directly because
passed pointer is checked by is_pointer_to_heap().
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* gc.c (should_be_callable): preserve encoding of class name in
error messages.
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ref: [Feature #9924]
* test/ruby/test_gc.rb: add constraints test for gc stat information.
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newobj_of() also touch:
(4) increment total_allocated_object_num
(5) check hook_events
And gather fields related to marking phase.
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to make accesssing both parameters easy.
* gc.c (heap_get_freeobj): add LIKELY() hint.
* gc.c (heap_get_freeobj_from_next_freepage): ditto.
* gc.c (newobj_of): check both parameters at once for exceptional
case.
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ruby_gc_stressfull macro.
Rename objspace->gc_stress to objspace->gc_stress_mode.
If objspace->gc_stress_mode is true (!nil and !false) then
ruby_gc_stressfull becomes TRUE.
ruby_gc_stressfull will speedup newobj_of() slightly.
* gc.c: initialize ruby_gc_stress(full|_mode) by gc_params.gc_stress
even if ENABLE_VM_OBJSPACE is false.
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Please refer this ticket for details.
This change also introduces the following changes.
* Remove RGENGC_AGE2_PROMOTION and introduce object age (0 to 3).
Age can be count with FL_PROMOTE0 and FL_PROMOTE1 flags in
RBasic::flags (2 bit). Age == 3 objects become old objects.
* WB_PROTECTED flag in RBasic to WB_UNPROTECTED bitmap.
* LONG_LIVED bitmap to represent living objects while minor GCs
It specifies (1) Old objects and (2) remembered shady objects.
* Introduce rb_objspace_t::marked_objects which counts marked
objects in current marking phase. marking count is needed to
introduce incremental marking.
* rename mark related function and sweep related function to
gc_(marks|sweep)_(start|finish|step|rest|continue).
* rename rgengc_report() to gc_report().
* Add obj_info() function to get cstr of object details.
* Add MEASURE_LINE() macro to measure execution time of specific line.
* and many small fixes.
* include/ruby/ruby.h: add flag USE_RINCGC.
Now USE_RINCGC can be set only with USE_RGENGC.
* include/ruby/ruby.h: introduce FL_PROMOTED0 and add FL_PROMOTED1
to count object age.
* include/ruby/ruby.h: rewrite write barriers for incremental marking.
* debug.c: catch up flag name changes.
* internal.h: add rb_gc_writebarrier_remember() instead of
rb_gc_writebarrier_remember_promoted().
* array.c (ary_memcpy0): use rb_gc_writebarrier_remember().
* array.c (rb_ary_modify): ditto.
* hash.c (rb_hash_keys): ditto.
* hash.c (rb_hash_values): ditto.
* object.c (init_copy): use rb_copy_wb_protected_attribute() because
FL_WB_PROTECTED is moved from RBasic::flags.
* test/objspace/test_objspace.rb: catch up ObjectSpace.dump() changes.
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when called from check_gen_consistency. It fixes segmentation
fault on RGENGC_CHECK_MODE >= 1 introduced by r47188.
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to objspace::rgengc::parent_object (VALUE).
Use Qfalse or RVALUE pointer instead of FALSE and TRUE.
* gc.c (gc_marks_body): should clear parent_object just before
gc_mark_roots() because there are no parents objects
for root objects.
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* add GPR_FLAG_MAJOR_BY_FORCE, which indicates
major GC by METHOD, CAPI and so on (see GC_BY).
* remove GPR_FLAG_MAJOR_BY_RESCAN because not used.
* remove GPR_FLAG_MAJOR_BY_STRESS, use FORCE instead.
* test/ruby/test_gc.rb: catch up.
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* vm.c: remove mark function for RubyVM object because
RubyVM object marked manually.
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fstrings refered by static symbols and pinned dynamic symbols
are registerd by rb_gc_register_mark_object().
frstring refered by dynamic symbols (not pinned symbols)
are refered from global_symbols.dsymbol_fstr_hash (Hash object).
Note that fstrings refered from dynamic symbols must live loger
than symbol objects themselves because rb_gc_free_dsymbol() uses
fstring to remove from symbol tables.
This is why we can not mark fstrings from dynamic symbols.
This technique reduces root objects for GC marking.
* gc.c (gc_mark_roots): ditto.
* internal.h: ditto.
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* gc.h: rb_objspace_garbage_object_p() as an exported function.
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This function is not opposite against is_live_object()
because is_dying_object() does *not* check object type.
* gc.c (is_dying_object): change condition.
* gc.c (is_live_object): use T_NONE instead of 0.
* gc.c (rb_objspace_dying_object_p): added.
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From single array, to array of arrays. Each array only has 1024
entries.
* vm.c (Init_vm_objects): change default capa from 1 to 128.
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Extend heap only at
(1) after major GC
or
(2) after several (two times, at current) minor GC
Details in https://bugs.ruby-lang.org/issues/9607#note-9
[Bug #9607]
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* gc.c (gc_page_sweep): should not set, but add final_slots into
sweep_page->final_slots.
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clear counter at the beggining of every GC and
count promoted (infant->young) objects.
Some promotions (infant->young) are transition of promoting to old
objects. We should not count such promotions.
With this technique, we don't need to check young objects
at obj_free().
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gc_verify_internal_consistency() counts all
- live objects
- young objects (if age2 promotion)
- old objects
in all pages and compares with objspace managing counters.
* gc.c (gc_after_sweep): do gc_verify_internal_consistency()
when RGENGC_CHECK_MODE >= 2.
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* gc.c: use int for simple predicate functions instead of VALUE.
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of RVALUE_OLD_P(). clang fails to compile it because is_old is
`int' but RVALUE_OLD_P() returns VALUE.
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* gc.c (RVALUE_DEMOTE_FROM_OLD): decrement old object count.
* gc.c (RVALUE_DEMOTE_FROM_YOUNG): decrement young object count.
* gc.c (rb_gc_resurrect): increment old object count.
* gc.c (gc_marks_body): should not add old object count.
This code is completely my misunderstanding.
* gc.c (rb_gc_force_recycle): decrement young or old object count
correctly.
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* gc.c (rb_free_m_tbl): mark function as static
* method.h (rb_free_m_tbl): remove prototype
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at the major GC because AGE2Promotion changes all old objects into
young objects at major GC.
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heap_pages_increment.
For example, GC by exceeding malloc_limit can remain
heap_pages_increment.
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on RGENGC_AGE2_PROMOTION.
* gc.c (RVALUE_PROMOTE_YOUNG): decrement young object count on
YOUNG->OLD.
* gc.c (obj_free): decrement young object count when young object
freed.
* gc.c (gc_marks): should not clear young object count.
* gc.c (gc_stat_internal): GC.stat :young_object information.
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Tomb heap pages are freed pages here, so expanding heap is
not required.
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when memop type is MEMOP_TYPE_REALLOC.
GC at realloc is not well maintained.
We need a time to make it safe.
[ruby-dev:48117]
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* gc.c (objspace_malloc_increase): run full mark if 0x04 bit is
set in ruby_gc_stress. [ruby-core:62103] [Feature #9761]
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* gc.c (objspace_malloc_increase): run GC after realloc not only
malloc and calloc by GC.stress. [ruby-core:62103] [Feature #9761]
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* gc.c (garbage_collect_body): name magic numbers.
* gc.c (gc_stress_set): GC.stress accepts not only boolean but
also Fixnum.
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* gc.c (rb_gc_writebarrier): drop special case for big hash/array
[Bug #9518]
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* gc.c: no newline in messages for rb_bug, it outputs a newline
after the message.
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* gc.c (gc_verify_internal_consistency): always do nothing unless
USE_RGENGC is set, no local variable needed.
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This reverts a hunk of r40703 by ko1.
This fixes [ruby-dev:48098] [Bug #9717].
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* gc.c (rgengc_rememberset_mark): don't promote, but remain in
remember set for infant objects.
* gc.c (RVALUE_PROMOTE_INFANT, RVALUE_PROMOTE_YOUNG): count numbers
in these functions.
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Add a new (hidden) C-API to iterate objspace snapshot.
This API is not safe to call any C-APIs in a given callback
function. Be careful to use this C-API.
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* gc.c (gc_info_decode): get rid of inadvertent dynamic symbol
pin-down, and preserve encoding in error messages. also should
not use RSTRING_PTR macro on function calls.
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See this ticket about Symbol GC.
* include/ruby/ruby.h:
Declare few functions.
* rb_sym2id: almost same as old SYM2ID but support dynamic symbols.
* rb_id2sym: almost same as old ID2SYM but support dynamic symbols.
* rb_sym2str: almost same as `rb_id2str(SYM2ID(sym))` but not
pin down a dynamic symbol.
Declare a new struct.
* struct RSymbol: represents a dynamic symbol as object in
Ruby's heaps.
Add few macros.
* STATIC_SYM_P: check a static symbol.
* DYNAMIC_SYM_P: check a dynamic symbol.
* RSYMBOL: cast to RSymbol
* gc.c: declare RSymbol. support T_SYMBOL.
* internal.h: Declare few functions.
* rb_gc_free_dsymbol: free up a dynamic symbol. GC call this
function at a sweep phase.
* rb_str_dynamic_intern: convert a string to a dynamic symbol.
* rb_check_id_without_pindown: not pinning function.
* rb_sym2id_without_pindown: ditto.
* rb_check_id_cstr_without_pindown: ditto.
* string.c (Init_String): String#intern and String#to_sym use
rb_str_dynamic_intern.
* template/id.h.tmpl: use LSB of ID as a flag for determining a
static symbol, so we shift left other ruby_id_types.
* string.c: use rb_sym2str instead `rb_id2str(SYM2ID(sym))` to
avoid pinning.
* load.c: use xx_without_pindown function at creating temporary ID
to avoid pinning.
* object.c: ditto.
* sprintf.c: ditto.
* struct.c: ditto.
* thread.c: ditto.
* variable.c: ditto.
* vm_method.c: ditto.
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garbage_collect_with_gvl() here on non-ruby threads.
Should just ignore the malloc_increase.
This issue is pointed by Eric Wong [ruby-core:61519].
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This hopefully works on all platforms with malloc_usable_size.
This may also trigger bugs in places which did not expect GC, too;
so maybe some existing code will need RB_GC_GUARD.
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add links to `Object#hash` to each #`hash` methods rdocs.
[Fixes GH-567]
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at first.
And return immediately if we don't touch sorted list any more.
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* include/ruby/ruby.h (RB_GC_GUARD):
use rb_gc_guarded_ptr_val on non-GCC/MSC
* gc.c (rb_gc_guarded_ptr_val): rename and adjust argument.
RB_GC_GUARD should be robust enough for any compiler.
[ruby-core:60816] [Bug #7805]
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"RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR" to control major/minor GC
frequency.
Do full GC when the number of old objects is more than R * N
where R is this factor and
N is the number of old objects just after last full GC.
* test/ruby/test_gc.rb: add a test.
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This function *ONLY* works just after marking phase,
before any sweeping.
This function is highly depending current GC implementation
and can be removed future version.
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* gc.c (ruby_gc_params_t, get_envparam_size): use size_t for
integer environment parameters for sizes.
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(changed by last commit) because "" or "foo" (not a number) strings
are parsed as 0. They should be rejected.
* gc.c (get_envparam_double): ditto.
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then set objspace->rgengc.oldmalloc_increase_limit.
Without this fix, the env variable RUBY_GC_OLDMALLOC_LIMIT
does not work.
* gc.c (get_envparam_int): accept a value equals to lowerbounds.
* gc.c (get_envparam_double): ditto.
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* vm_core.h (rb_thread_struct): aggregate cpu stuff into a struct,
so that a debugger can show its content at once.
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RUBY_FREE_MIN/RUBY_HEAP_MIN_SLOTS if
RUBY_GC_HEAP_FREE_SLOTS/RUBY_GC_HEAP_INIT_SLOTS are given.
[Bug #9276]
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* gc.c (heap_get_freeobj_from_next_freepage): replace with
heap_get_freepage(). It returns freeobj instead of freepage.
This is not on hot path.
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* gc.c (heap_get_freeobj): remove redundant assignment. heap->freelist
is set after the while() loop already.
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can be OR of multiple reasons.
* gc.c (gc_profile_dump_on): ditto.
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nobu
ko1
nagachika
kazu
svn
ktsj
normal
naruse
nari
akr
hsbt
zzak
tmm1
marcandre