When RGENGC_CHECK_MODE >= 2, all minor marking, run normal minor
marking *and* major/full marking. After that, compare the results
and shows BUG if a object living with major/full marking but dead
with minor marking.
After detecting bugs, print references information.
(RGENGC_CHECK_MODE == 2, show references to dead object)
(RGENGC_CHECK_MODE == 3, show all references)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41436 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
rb_data_type_struct::flags. Now, this flags is passed
at T_DATA object creation. You can specify FL_WB_PROTECTED
on this flag.
* iseq.c: making non-shady iseq objects.
* class.c, compile.c, proc.c, vm.c: add WB for iseq objects.
* vm_core.h, iseq.h: constify fields to detect WB insertion.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41412 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (gc_mark_children): show more info for broken object.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41410 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
In this mode, show all references if there is
a miss-corrected object.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41401 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
`GC.stress=(flag)' accepts integer to control behavior of GC.
See code for details. Of course, this feature is only for MRI.
You can debug RGenGC (WB) using `GC.stress = 1'.
Using this option, do minor marking at all possible places.
GC::STRESS_MINOR_MARK = 1 and GC::STRESS_LAZY_SWEEP = 2
seem good to add.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41400 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (markable_object_p): do not need to check (flags == 0) here.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41372 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/objspace/objspace.c: try to include overview in rdoc,
see #8537.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41354 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
type is not T_ZOMBE.
* gc.c: use `gc_mark_maybe()'. T_ZOMBIE objects should not be pushed
to the mark stack.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41345 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Add allocate size to malloc_increase before GC
for updating limit in after_gc_sweep.
Reset malloc_increase into garbage_collect()
for preventing GC again soon.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41325 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
(no-allocation `w->obj2wmap' will be NULL pointer reference)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41207 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
so can skip oldgen bitmap check around mark & sweep.
* gc.c (slot_sweep_body): change scan algorithm for performance:
from object's pointer base to bitmap one.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41128 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
"Sunny" doesn't mean antonym of "Shady" (questionable, doubtful, etc).
Instead of "Suuny", use "non-shady" or "normal".
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41121 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (rgengc_rememberset_mark): bypass gc_mark() in order to push
sunny old object at minor gc.
* gc.c (gc_mark_children): move sunny old check to gc_mark().
* gc.c (rgengc_check_shady): remove DEMOTE that already unnecessary.
* gc.c (rb_gc_writebarrier): ditto.
change sunny old check point in order to save mark stack and
remove unnatural rest_sweep & demote.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Profiling record is allocated at first of marking phase.
Enable at lazy sweeping may cause an error (SEGV).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40984 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
RUBY_INTERNAL_EVENT_GC_END. This event invokes at the end of
after_sweep().
Time chart with lazy sweep is here:
(1) Kick RUBY_INTERNAL_EVENT_GC_START
(2) [gc_marks()]
(3) [lazy_sweep()]
(4) [... run Ruby program (mutator) with lazy_sweep() ...]
(5) [after_sweep()]
(6) Kick RUBY_INTERNAL_EVENT_GC_END
(7) [... run Ruby program (mutator), and go to (1) ...]
* ext/-test-/tracepoint/tracepoint.c,
test/-ext-/tracepoint/test_tracepoint.rb: modify a test.
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Read the following test to know HOWTO.
This feature is a sample of RUBY_INTERNAL_EVENT.
* test/objspace/test_objspace.rb: add a test.
* ext/objspace/object_tracing.c: ditto.
* gc.c (rb_gc_count): add. THis function returns GC count.
* internal.h: add decl. of rb_gc_count(). Same as `GC.count'.
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