mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-22 09:45:06 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 13
cpython/Objects
History
Neil Schemenauer 5c16f699d2
Some checks failed
Lint / lint (push) Has been cancelled
Details
Tests / Change detection (push) Has been cancelled
Details
Tests / (push) Has been cancelled
Details
Tests / Windows MSI (push) Has been cancelled
Details
Tests / Docs (push) Has been cancelled
Details
Tests / Check if the ABI has changed (push) Has been cancelled
Details
Tests / Check if Autoconf files are up to date (push) Has been cancelled
Details
Tests / Check if generated files are up to date (push) Has been cancelled
Details
Tests / Ubuntu SSL tests with OpenSSL (push) Has been cancelled
Details
Tests / WASI (push) Has been cancelled
Details
Tests / Hypothesis tests on Ubuntu (push) Has been cancelled
Details
Tests / Address sanitizer (push) Has been cancelled
Details
Tests / CIFuzz (push) Has been cancelled
Details
Tests / All required checks pass (push) Has been cancelled
Details
[3.13] GH-133136: Revise QSBR to reduce excess memory held (gh-135473) (gh-136480) 
The free threading build uses QSBR to delay the freeing of dictionary
keys and list arrays when the objects are accessed by multiple threads
in order to allow concurrent reads to proceed with holding the object
lock. The requests are processed in batches to reduce execution
overhead, but for large memory blocks this can lead to excess memory
usage.

Take into account the size of the memory block when deciding when to
process QSBR requests.

Also track the amount of memory being held by QSBR for mimalloc pages.
Advance the write sequence if this memory exceeds a limit.  Advancing
the sequence will allow it to be freed more quickly.

Process the held QSBR items from the "eval breaker", rather than from
`_PyMem_FreeDelayed()`.  This gives a higher chance that the global read
sequence has advanced enough so that items can be freed.

(cherry picked from commit 113de8545f)

Co-authored-by: Neil Schemenauer <nas-github@arctrix.com>
Co-authored-by: Sam Gross <colesbury@gmail.com>
2025-07-30 11:06:44 -07:00
..
clinic [3.13] gh-128714: Fix function object races in __annotate__, __annotations__ and __type_params__ in free-threading build (GH-129016) (#129729) 2025-02-23 21:49:55 -05:00
mimalloc [3.13] Fix typos (#123775) (#123866) 2024-10-07 23:44:31 +02:00
stringlib [3.13] gh-127971: fix off-by-one read beyond the end of a string during search (#132574) (#136648) 2025-07-14 11:50:22 +02:00
abstract.c gh-116316: Fix typo in UNARY_FUNC(PyNumber_Positive) macros (GH-116317) 2024-03-04 17:57:01 +00:00
boolobject.c [3.13] gh-122982: Extend the deprecation period for bool inversion by two years (GH-123306) (#123316) 2024-08-25 19:48:34 +00:00
bytearrayobject.c [3.13] gh-91153: prevent a crash in bytearray.__setitem__(ind, ...) when ind.__index__ has side-effects (GH-132379) (#136582) 2025-07-12 16:34:45 +02:00
bytes_methods.c gh-117431: Adapt bytes and bytearray .find() and friends to Argument Clinic (#117502) 2024-04-12 07:40:55 +00:00
bytesobject.c [3.13] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133944) 2025-05-20 14:46:57 +02:00
call.c gh-106320: Remove _PyFunction_Vectorcall() API (#107071) 2023-07-22 21:44:33 +00:00
capsule.c [3.13] gh-124538: Fix crash when using gc.get_referents on an untracked capsule object (GH-124559) (#124588) 2024-09-26 13:51:58 -07:00
cellobject.c gh-117323: Make cell thread-safe in free-threaded builds (#117330) 2024-03-29 13:35:43 -04:00
classobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
codeobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
complexobject.c [3.13] gh-113841: fix possible undefined division by 0 in _Py_c_pow() (GH-127211) (#127216) 2024-12-02 15:42:02 +01:00
descrobject.c [3.13] gh-132747: Fix NULL dereference when calling a method's __get__ manually (GH-132772) (#132786) 2025-04-21 21:38:51 +00:00
dictnotes.txt
dictobject.c [3.13] GH-133136: Revise QSBR to reduce excess memory held (gh-135473) (gh-136480) 2025-07-30 11:06:44 -07:00
enumobject.c gh-106320: Create pycore_modsupport.h header file (#106355) 2023-07-03 09:39:11 +00:00
exception_handling_notes.txt GH-105848: Simplify the arrangement of CALL's stack (GH-107788) 2023-08-09 18:19:39 +00:00
exceptions.c [3.13] gh-129668: Fix thread-safety of MemoryError freelist in free threaded build (gh-129704) (gh-129742) 2025-02-06 13:27:30 -05:00
fileobject.c gh-87193: Support bytes objects with refcount > 1 in _PyBytes_Resize() (GH-117160) 2024-03-25 16:32:11 +01:00
floatobject.c [3.13] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122012) 2024-07-19 09:13:08 +00:00
frame_layout.md gh-109094: replace frame->prev_instr by frame->instr_ptr (#109095) 2023-10-26 13:43:10 +00:00
frameobject.c [3.13] gh-128396: Fix a crash when inline comprehension has the same … (#130311) 2025-02-19 17:40:03 +00:00
funcobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
genericaliasobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
genobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
iterobject.c [3.13] gh-128078: Clear exception in anext before calling _PyGen_SetStopIterationValue (GH-128780) (#128785) 2025-01-13 13:20:49 +00:00
listobject.c [3.13] GH-133136: Revise QSBR to reduce excess memory held (gh-135473) (gh-136480) 2025-07-30 11:06:44 -07:00
listsort.txt GH-116939: Rewrite binarysort() (#116940) 2024-03-21 22:27:25 -05:00
lnotab_notes.txt Document the co_lines method on code objects (#113682) 2024-01-03 19:29:24 +00:00
locations.md
longobject.c [3.13] gh-133489: Remove size restrictions on getrandbits() and randbytes() (GH-133658) (GH-134965) 2025-06-02 23:16:30 +03:00
memoryobject.c [3.13] gh-126341: add release check to __iter__ method of memoryview (GH-126759) (#126778) 2024-11-13 19:05:59 +00:00
methodobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
moduleobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
namespaceobject.c [3.13] gh-135878: Fix crash in types.SimpleNamespace.__repr__ (GH-135889) (#135895) 2025-06-24 16:59:29 +00:00
object.c [3.13] gh-117657: Enable test_opcache under TSAN (GH-129831) (GH-130597) 2025-02-26 13:59:59 -05:00
object_layout.md GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_312.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_312.png GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_313.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_313.png GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_full_312.gv
object_layout_full_312.png
object_layout_full_313.gv GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
object_layout_full_313.png GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115) 2024-04-02 11:59:21 +01:00
obmalloc.c [3.13] GH-133136: Revise QSBR to reduce excess memory held (gh-135473) (gh-136480) 2025-07-30 11:06:44 -07:00
odictobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
picklebufobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
rangeobject.c gh-117764: Fix and add signatures for many builtins (GH-117769) 2024-04-12 13:56:41 +03:00
README
setobject.c [3.13] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136126) 2025-07-01 11:26:52 +02:00
sliceobject.c gh-117764: Add docstrings and signatures for the types of None, Ellipsis and NotImplemented (GH-117813) 2024-04-12 15:45:23 +03:00
structseq.c [3.13] gh-123091: Use more _Py_IsImmortalLoose() (GH-123602) (GH-123622) 2024-09-03 12:36:42 +02:00
tupleobject.c [3.13] gh-126076: Account for relocated objects in tracemalloc (GH-126077) (#127823) 2024-12-11 14:15:37 +01:00
typeobject.c [3.13] gh-78465: Fix error message for cls.__new__(cls, ...) where cls is not instantiable (GH-135981) (GH-136031) 2025-06-27 12:07:22 +00:00
typeslots.inc
typeslots.py
typevarobject.c [3.13] gh-124498: Fix TypeAliasType not to be generic, when type_params=() (GH-124499) (#124603) 2024-09-29 18:01:06 -07:00
unicodectype.c [3.13] gh-82045: Correct and deduplicate "isprintable" docs; add test. (GH-130127) 2025-02-17 15:02:39 +01:00
unicodeobject.c [3.13] gh-133767: Fix use-after-free in the unicode-escape decoder with an error handler (GH-129648) (GH-133944) 2025-05-20 14:46:57 +02:00
unicodetype_db.h gh-96954: Fix make regen-unicodedata in out-of-tree builds (#112118) 2023-11-15 16:42:17 +00:00
unionobject.c [3.13] gh-132713: Fix typing.Union[index] race condition (GH-132802) (#132839) 2025-04-23 14:12:03 +00:00
weakrefobject.c [3.13] gh-121652: Handle allocate_weakref returning NULL (GH-121653) (#121721) 2024-07-13 16:31:50 +00:00

README 

Source files for various builtin objects