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objspace_dump: Include shareable flag

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Given that the currently planned ractor local GC implementation
performance will heavilly be influenced by the number of shareable
objects it would be valuable to be able to know how many of them
are in the heap.
This commit is contained in:
Jean Boussier 2025-04-21 10:21:55 +09:00
parent 7af5a632f4
commit cb1ea54bbf
2 changed files with 10 additions and 1 deletions
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4
gc/default/default.c
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@ -6199,7 +6199,7 @@ rb_gc_impl_object_metadata(void *objspace_ptr, VALUE obj)
{
rb_objspace_t *objspace = objspace_ptr;
size_t n = 0;
static ID ID_wb_protected, ID_age, ID_old, ID_uncollectible, ID_marking, ID_marked, ID_pinned, ID_object_id;
static ID ID_wb_protected, ID_age, ID_old, ID_uncollectible, ID_marking, ID_marked, ID_pinned, ID_object_id, ID_shareable;
if (!ID_marked) {
#define I(s) ID_##s = rb_intern(#s);
@ -6211,6 +6211,7 @@ rb_gc_impl_object_metadata(void *objspace_ptr, VALUE obj)
I(marked);
I(pinned);
I(object_id);
I(shareable);
#undef I
}
@ -6229,6 +6230,7 @@ rb_gc_impl_object_metadata(void *objspace_ptr, VALUE obj)
if (RVALUE_MARKED(objspace, obj)) SET_ENTRY(marked, Qtrue);
if (RVALUE_PINNED(objspace, obj)) SET_ENTRY(pinned, Qtrue);
if (FL_TEST(obj, FL_SEEN_OBJ_ID)) SET_ENTRY(object_id, rb_obj_id(obj));
if (FL_TEST(obj, FL_SHAREABLE)) SET_ENTRY(shareable, Qtrue);
object_metadata_entries[n].name = 0;
object_metadata_entries[n].val = 0;

7
test/objspace/test_objspace.rb
View File

@ -977,6 +977,13 @@ class TestObjSpace < Test::Unit::TestCase
assert_equal class_name, JSON.parse(json)["name"]
end
def test_dump_include_shareable
omit 'Not provided by mmtk' if RUBY_DESCRIPTION.include?("+GC[mmtk]")
assert_include(ObjectSpace.dump(ENV), '"shareable":true')
assert_not_include(ObjectSpace.dump([]), '"shareable":true')
end
def test_utf8_method_names
name = "utf8_❨╯°□°❩╯︵┻━┻"
obj = ObjectSpace.trace_object_allocations do