* eval_intern.h (rb_threadptr_tag_state, rb_threadptr_tag_jump):
rename prefix ruby as rb, same as other rb_threadptr functions.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43536 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This is another approach to solve an issue discussed at r43530.
This feature is diabled as default.
This feature measures an increment of memory consuption by oldgen
objects. It measures memory consumption for each objects when
the object is promoted. However, measurement of memory consumption
is not accurate now. So that this measurement is `estimation'.
To implement this feature, move memsize_of() function from
ext/objspace/objspace.c and expose rb_obj_memsize_of().
Some memsize() functions for T_DATA (T_TYPEDDATA) have problem to
measure memory size, so that we ignores T_DATA objects now.
For example, some functions skip NULL check for pointer.
The macro RGENGC_ESTIMATE_OLDSPACE enables/disables this feature,
and turned off as default.
We need to compare 3gen GC and this feature carefully.
(it is possible to enable both feature)
We need a help to compare them.
* internal.h: expose rb_obj_memsize_of().
* ext/objspace/objspace.c: use rb_obj_memsize_of() function.
* cont.c (fiber_memsize): fix to check NULL.
* variable.c (autoload_memsize): ditto.
* vm.c (vm_memsize): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43532 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
RGenGC is designed as 2 generational GC, young and old generation.
Young objects will be promoted to old objects after one GC.
Old objects are not collect until major (full) GC.
The issue of this approach is some objects can promoted as old
objects accidentally and not freed until major GC.
Major GC is not frequently so short-lived but accidentally becoming
old objects are not freed.
For example, the program "loop{Array.new(1_000_000)}" consumes huge
memories because short lived objects (an array which has 1M
elements) are promoted while GC and they are not freed before major
GC.
To solve this problem, generational GC with more generations
technique is known. This patch implements three generations gen GC.
At first, newly created objects are "Infant" objects.
After surviving one GC, "Infant" objects are promoted to "Young"
objects.
"Young" objects are promoted to "Old" objects after surviving
next GC.
"Infant" and "Young" objects are collected if it is not marked
while minor GC. So that this technique solves this problem.
Representation of generations:
* Infant: !FL_PROMOTED and !oldgen_bitmap [00]
* Young : FL_PROMOTED and !oldgen_bitmap [10]
* Old : FL_PROMOTED and oldgen_bitmap [11]
The macro "RGENGC_THREEGEN" enables/disables this feature, and
turned off as default because there are several problems.
(1) Failed sometimes (Heisenbugs).
(2) Performance down.
Especially on write barriers. We need to detect Young or Old
object by oldgen_bitmap. It is slower than checking flags.
To evaluate this feature on more applications, I commit this patch.
Reports are very welcome.
This patch includes some refactoring (renaming names, etc).
* include/ruby/ruby.h: catch up 3gen GC.
* .gdbinit: fix to show a prompt "[PROMOTED]" for promoted objects.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43530 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This flag represents that "this object is promoted at least once."
* gc.c, debug.c, object.c: catch up this change.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43527 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* eval_intern.h (TH_EXEC_TAG, TH_JUMP_TAG): get rid of undefined
behavior of setjmp() in rhs of assignment expression.
[ISO/IEC 9899:1999] 7.13.1.1
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43522 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/ifchange, win32/ifchange.bat: do not overwrite with an empty
file by default, and add --empty option to force it.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43519 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (obj_free): suppress a false shorten-64-to-32 warning,
RUBY_TYPED_FREE_IMMEDIATELY never exceed the limit of int.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43516 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/logger.rb (Logger::LogDevice::LogDeviceMutex#lock_shift_log):
open file can't be removed or renamed on Windows. [ruby-dev:47790]
[Bug #9046]
* test/logger/test_logger.rb (TestLogDevice#run_children): don't use
fork.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43513 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Current implementation fails log rotation on multi process env.
by sonots <sonots@gmail.com>
https://github.com/ruby/ruby/pull/428 fix GH-428 [Bug #9046]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43511 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
performance. Add before_sweep condition to heap_page structure.
* gc.c (rb_gc_force_recycle): Use before_sweep member.
* gc.c (heap_is_before_sweep, is_before_sweep): Remove. They has not
already been used.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43508 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* transcode.c (str_transcode0): fix segv in String.encode!. now
rb_str_scrub() can return nil.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43504 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* string.c (rb_str_scrub): fix typo, should yield invalid byte
sequence to be scrubbed. reported by znz at IRC.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43503 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (is_live_object): finalizer may not run because of lazy-sweep.
[ruby-dev:47786] [Bug #9069]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43502 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/ruby/test_m17n.rb (test_scrub, test_scrub_bang): now explicit
nil is allowed as replacement.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43501 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* string.c (rb_str_scrub): export with fixed length arguments, and
allow nil as replacement string instead of omitting.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43500 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* load.c (rb_load_internal): use local variable th instead of
GET_THREAD() for each time.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43498 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
on 64bit platform. Patch by Eric Wong. [Feature #9068][ruby-core:58114]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43497 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
svn
tenderlove
akr
tarui
nobu
ko1
kazu
naruse
kosaki
kou