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* [3.13] gh-131740: Update PyUnstable_GC_VisitObjects to traverse perm … ↵Donghee Na2025-03-261-10/+20
| | | | | | | | | (gh-131754) * [3.13] gh-131740: Update PyUnstable_GC_VisitObjects to traverse perm gen (gh-131744) (cherry picked from commit 7bb41aef4b7b8f3c3f07c11b801c5b7f8afaac7f) * fix
* [3.13] GH-124567: Revert the Incremental GC in 3.13 (#124770)T. Wouters2024-09-301-564/+326
| | | | | Revert the incremental GC in 3.13, since it's not clear that without further turning, the benefits outweigh the costs. Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
* [3.13] gh-116510: Fix crash during sub-interpreter shutdown (gh-124645) ↵Miss Islington (bot)2024-09-271-3/+26
| | | | | | | | | | | | (#124649) gh-116510: Fix crash during sub-interpreter shutdown (gh-124645) Fix a bug that can cause a crash when sub-interpreters use "basic" single-phase extension modules. Shared objects could refer to PyGC_Head nodes that had been freed as part of interpreter shutdown. (cherry picked from commit 6f9525dd3f0ef5809106ca0923a7512d666a04bb) Co-authored-by: Neil Schemenauer <nas-github@arctrix.com>
* [3.13] GH-117759: Document incremental GC (GH-123266) (#123395)Miss Islington (bot)2024-09-021-11/+16
| | | | | | | | | | GH-117759: Document incremental GC (GH-123266) * Update what's new * Update gc module docs and fix inconsistency in gc.get_objects (cherry picked from commit f49a91648aac2ad55b2e005ba28fac1c7edca020) Co-authored-by: Mark Shannon <mark@hotpy.org>
* [3.13] GH-122298: Restore printing of GC stats (GH-123261) (#123268)Miss Islington (bot)2024-09-021-0/+25
| | | | | | GH-122298: Restore printing of GC stats (GH-123261) (cherry picked from commit 7cd3aa42f0cf72bf9a214e2630850879fe078377) Co-authored-by: Mark Shannon <mark@hotpy.org>
* gh-110850: Remove _PyTime_TimeUnchecked() function (#118552)Victor Stinner2024-05-051-1/+0
| | | | | | | | | | | | | Use the new public Raw functions: * _PyTime_PerfCounterUnchecked() with PyTime_PerfCounterRaw() * _PyTime_TimeUnchecked() with PyTime_TimeRaw() * _PyTime_MonotonicUnchecked() with PyTime_MonotonicRaw() Remove internal functions: * _PyTime_PerfCounterUnchecked() * _PyTime_TimeUnchecked() * _PyTime_MonotonicUnchecked()
* GH-115776: Embed the values array into the object, for "normal" Python ↵Mark Shannon2024-04-021-1/+6
| | | | objects. (GH-116115)
* Silence compiler warnings in gc.c (#117422)Guido van Rossum2024-04-011-0/+3
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* GH-117108: Set the "old space bit" to "visited" for all young objects (#117213)Mark Shannon2024-03-261-17/+37
| | | | Change old space bit of young objects from 0 to gcstate->visited_space. This ensures that any object created *and* collected during cycle GC has the bit set correctly.
* A few minor tweaks to get stats working and compiling cleanly. (#117219)Mark Shannon2024-03-251-5/+3
| | | | Fixes a compilation error when configured with `--enable-pystats`, an array size issue, and an unused variable.
* GH-117108: Change the size of the GC increment to about 1% of the total heap ↵Mark Shannon2024-03-221-15/+15
| | | | size. (GH-117120)
* GH-108362: Incremental Cycle GC (GH-116206)Mark Shannon2024-03-201-308/+498
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* gh-116604: Correctly honor the gc status when calling _Py_RunGC (#116628)Pablo Galindo Salgado2024-03-121-0/+4
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* gh-110850: Use public PyTime functions (#115746)Victor Stinner2024-02-201-1/+1
| | | | | Replace private _PyTime functions with public PyTime functions. random_seed_time_pid() now reports errors to its caller.
* gh-110850: Rename internal PyTime C API functions (#115734)Victor Stinner2024-02-201-3/+3
| | | | | | | | | | | | | | | | | Rename functions: * _PyTime_GetSystemClock() => _PyTime_TimeUnchecked() * _PyTime_GetPerfCounter() => _PyTime_PerfCounterUnchecked() * _PyTime_GetMonotonicClock() => _PyTime_MonotonicUnchecked() * _PyTime_GetSystemClockWithInfo() => _PyTime_TimeWithInfo() * _PyTime_GetMonotonicClockWithInfo() => _PyTime_MonotonicWithInfo() * _PyTime_GetMonotonicClockWithInfo() => _PyTime_MonotonicWithInfo() Changes: * Remove "typedef PyTime_t PyTime_t;" which was "typedef PyTime_t _PyTime_t;" before a previous rename. * Update comments of "Unchecked" functions. * Remove invalid PyTime_Time() comment.
* gh-110850: Cleanup pycore_time.h includes (#115724)Victor Stinner2024-02-201-0/+1
| | | | | <pycore_time.h> include is no longer needed to get the PyTime_t type in internal header files. This type is now provided by <Python.h> include. Add <pycore_time.h> includes to C files instead.
* gh-110850: Replace _PyTime_t with PyTime_t (#115719)Victor Stinner2024-02-201-1/+1
| | | | | Run command: sed -i -e 's!\<_PyTime_t\>!PyTime_t!g' $(find -name "*.c" -o -name "*.h")
* gh-112175: Add `eval_breaker` to `PyThreadState` (#115194)Brett Simmers2024-02-201-3/+6
| | | | | | | | | | | This change adds an `eval_breaker` field to `PyThreadState`. The primary motivation is for performance in free-threaded builds: with thread-local eval breakers, we can stop a specific thread (e.g., for an async exception) without interrupting other threads. The source of truth for the global instrumentation version is stored in the `instrumentation_version` field in PyInterpreterState. Threads usually read the version from their local `eval_breaker`, where it continues to be colocated with the eval breaker bits.
* gh-115124: Use _PyObject_ASSERT() in gc.c (#115125)Victor Stinner2024-02-151-15/+22
| | | | Replace assert() with _PyObject_ASSERT() in gc.c to dump the object when an assertion fails.
* GH-108362: Revert "GH-108362: Incremental GC implementation (GH-108038)" ↵Mark Shannon2024-02-071-514/+310
| | | | | | | (#115132) Revert "GH-108362: Incremental GC implementation (GH-108038)" This reverts commit 36518e69d74607e5f094ce55286188e4545a947d.
* GH-108362: Incremental GC implementation (GH-108038)Mark Shannon2024-02-051-310/+514
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* gh-112529: Implement GC for free-threaded builds (#114262)Sam Gross2024-01-251-2/+6
| | | | | | | * gh-112529: Implement GC for free-threaded builds This implements a mark and sweep GC for the free-threaded builds of CPython. The implementation relies on mimalloc to find GC tracked objects (i.e., "containers").
* gh-112529: Use GC heaps for GC allocations in free-threaded builds (gh-114157)Sam Gross2024-01-201-6/+7
| | | | | | | | | | * gh-112529: Use GC heaps for GC allocations in free-threaded builds The free-threaded build's garbage collector implementation will need to find GC objects by traversing mimalloc heaps. This hooks up the allocation calls with the correct heaps by using a thread-local "current_obj_heap" variable. * Refactor out setting heap based on type
* gh-111968: Introduce _PyFreeListState and _PyFreeListState_GET API (gh-113584)Donghee Na2024-01-091-16/+1
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* gh-113688: Split up gcmodule.c (gh-113715)Sam Gross2024-01-051-0/+1958
This splits part of Modules/gcmodule.c of into Python/gc.c, which now contains the core garbage collection implementation. The Python module remain in the Modules/gcmodule.c file.
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