ruby.git - The Ruby Programming Language

Age	Commit message (Collapse)	Author
2025-12-20	[ruby/mmtk] Implement fast path for bump pointer allocator	Peter Zhu
	Adding a fast path for bump pointer allocator can improve allocation performance. For the following microbenchmark with MMTK_HEAP_MIN=100MiB: 10_000_000.times { String.new } Before: 810.7 ms ± 8.3 ms [User: 790.9 ms, System: 40.3 ms] After: 777.9 ms ± 10.4 ms [User: 759.0 ms, System: 37.9 ms] https://github.com/ruby/mmtk/commit/0ff5c9f579
2025-12-20	[ruby/mmtk] Call rb_bug when Ruby mutator thread panics	Peter Zhu
	This will allow the Ruby backtrace, memory mapping, etc. to be outputted when a Ruby mutator thread panics. https://github.com/ruby/mmtk/commit/d10fd325dd
2025-07-30	[ruby/mmtk] Skip weak references that are special consts	Peter Zhu
	If a reference marked weak becomes a special const, it will crash because it is not a GC handled object. We should skip special consts here. https://github.com/ruby/mmtk/commit/870a79426b
2025-05-08	Move `object_id` in object fields.	Jean Boussier
	And get rid of the `obj_to_id_tbl` It's no longer needed, the `object_id` is now stored inline in the object alongside instance variables. We still need the inverse table in case `_id2ref` is invoked, but we lazily build it by walking the heap if that happens. The `object_id` concern is also no longer a GC implementation concern, but a generic implementation. Co-Authored-By: Matt Valentine-House <matt@eightbitraptor.com> Notes: Merged: https://github.com/ruby/ruby/pull/13159
2025-04-08	[ruby/mmtk] Do root scanning in scan_vm_specific_roots	Kunshan Wang
	We rely on scan_vm_specific_roots to reach all stacks via the following path: VM -> ractors -> threads -> fibers -> stacks https://github.com/ruby/mmtk/commit/0a6a835aaa
2025-02-24	[ruby/mmtk] Trigger forced GC in GC.start	Kunshan Wang
	We now use `MMTK::handle_user_collection_request(true, ...)` to force triggering a GC instead of enabling GC temporarily. https://github.com/ruby/mmtk/commit/02ef47f818
2025-01-17	[ruby/mmtk] Add mmtk_heap_max to GC.config	Peter Zhu
	https://github.com/ruby/mmtk/commit/6a78ffaf16
2025-01-16	[ruby/mmtk] Add mmtk_heap_min to GC.config	Peter Zhu
	https://github.com/ruby/mmtk/commit/5bbac70c69
2025-01-16	[ruby/mmtk] Add mmtk_heap_mode to GC.config	Peter Zhu
	https://github.com/ruby/mmtk/commit/810f897603
2025-01-15	[ruby/mmtk] Add mmtk_plan to GC.config	Peter Zhu
	https://github.com/ruby/mmtk/commit/67da9ea5b8
2025-01-15	[ruby/mmtk] Fix mmtk.h	Peter Zhu
	https://github.com/ruby/mmtk/commit/dbb4036be9
2025-01-14	[ruby/mmtk] Add mmtk_worker_count to GC.config	Peter Zhu
	https://github.com/ruby/mmtk/commit/836a9059cb
2024-11-22	[ruby/mmtk] Use extconf.rb for external GC compilation	Peter Zhu
	This commit adds extconf.rb for both the default GC and and MMTk to build the external GC. This allows common.mk to not need to contain any implementation-specific build configuration. https://github.com/ruby/mmtk/commit/db6a29b4a9