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cpython/Python
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Sam Gross 3d4ac1a2c2
gh-123358: Use _PyStackRef in LOAD_DEREF (gh-130064) 
Concurrent accesses from multiple threads to the same `cell` object did not
scale well in the free-threaded build. Use `_PyStackRef` and optimistically
avoid locking to improve scaling.

With the locks around cell reads gone, some of the free threading tests were
prone to starvation: the readers were able to run in a tight loop and the
writer threads weren't scheduled frequently enough to make timely progress.
Adjust the tests to avoid this.

Co-authored-by: Donghee Na <donghee.na@python.org>
2025-03-26 12:08:20 -04:00
..
clinic
gh-128421: add critical section around traceback.tb_next (#131322)
2025-03-20 12:03:54 +05:30
frozen_modules
…
_warnings.c
gh-131238: Move _Py_VISIT_STACKREF() to pycore_stackref.h (#131560)
2025-03-21 23:24:14 +01:00
asdl.c
…
asm_trampoline.S
…
assemble.c
GH-123044: Give the POP_TOP after a case test a location in the body, not the pattern. (GH-130627)
2025-03-10 17:31:16 +00:00
ast_opt.c
gh-130080: do not fold match case constants in unoptimized AST (#131577)
2025-03-23 13:50:14 +00:00
ast_unparse.c
gh-119182: Use public PyUnicodeWriter in ast_unparse.c (#129208)
2025-01-23 01:44:43 +01:00
ast.c
gh-131238: Add explicit includes to pycore headers (#131257)
2025-03-17 12:32:43 +01:00
bltinmodule.c
gh-131670: Fix crash in anext() when __anext__ is sync and raises (#131682)
2025-03-24 19:00:48 +00:00
bootstrap_hash.c
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
brc.c
…
bytecodes.c
gh-123358: Use _PyStackRef in LOAD_DEREF (gh-130064)
2025-03-26 12:08:20 -04:00
ceval_gil.c
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
ceval_macros.h
GH-127705: Use _PyStackRefs in the default build. (GH-127875)
2025-03-10 14:06:56 +00:00
ceval.c
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
codecs.c
gh-131238: Remove more includes from pycore_interp.h (#131480)
2025-03-19 23:01:32 +01:00
codegen.c
gh-130881: Handle conditionally defined annotations (#130935)
2025-03-26 03:48:19 +00:00
compile.c
gh-130881: Handle conditionally defined annotations (#130935)
2025-03-26 03:48:19 +00:00
condvar.h
…
config_common.h
…
context.c
gh-111178: Change Argument Clinic signature for METH_O (#130682)
2025-03-11 16:33:36 +01:00
critical_section.c
gh-114203: Optimise simple recursive critical sections (#128126)
2024-12-23 13:31:33 +01:00
crossinterp_data_lookup.h
gh-76785: Improved Subinterpreters Compatibility with 3.12 (2/2) (gh-126707)
2024-11-12 10:41:51 -07:00
crossinterp_exceptions.h
gh-76785: Minor Cleanup of Exception-related Cross-interpreter State (gh-126602)
2024-11-11 14:49:41 -07:00
crossinterp.c
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
dtoa.c
gh-131238: Add explicit includes to pycore headers (#131257)
2025-03-17 12:32:43 +01:00
dup2.c
…
dynamic_annotations.c
…
dynload_hpux.c
…
dynload_shlib.c
gh-131238: Remove more includes from pycore_interp.h (#131480)
2025-03-19 23:01:32 +01:00
dynload_stub.c
…
dynload_win.c
gh-131238: Remove pycore_runtime.h from pycore_pystate.h (#131356)
2025-03-19 17:33:24 +01:00
emscripten_signal.c
…
emscripten_trampoline.c
gh-128627: Skip wasm-gc on iOS Safari where it's broken (#130418)
2025-02-24 07:26:04 +08:00
errors.c
gh-131401: fix data races in exception handling (#131447)
2025-03-20 12:02:05 +05:30
executor_cases.c.h
gh-123358: Use _PyStackRef in LOAD_DEREF (gh-130064)
2025-03-26 12:08:20 -04:00
fileutils.c
Fix Windows build warnings (#131487)
2025-03-20 12:03:20 +01:00
flowgraph.c
GH-130296: Remove _PyOpcode_max_stack_effect as it is no longer used (GH-131493)
2025-03-20 11:42:54 +00:00
formatter_unicode.c
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
frame.c
gh-128421: Avoid TSAN warnings in sys._current_frames() (gh-131548)
2025-03-24 09:49:39 -04:00
frozen.c
GH-89435: os.path should not be a frozen module (#126924)
2024-11-22 18:50:30 +00:00
frozenmain.c
…
future.c
gh-126139: Improve error message location for future statement with unknown feature (#126140)
2024-10-29 23:57:59 +00:00
gc_free_threading.c
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
gc_gil.c
…
gc.c
gh-131740: Update PyUnstable_GC_VisitObjects to traverse perm gen (gh-131744)
2025-03-26 09:45:29 +09:00
generated_cases.c.h
gh-123358: Use _PyStackRef in LOAD_DEREF (gh-130064)
2025-03-26 12:08:20 -04:00
getargs.c
GH-131238: More refactoring of core header files (GH-131351)
2025-03-17 14:41:05 +00:00
getcompiler.c
…
getcopyright.c
gh-126133: Only use start year in PSF copyright, remove end years (#126236)
2024-11-12 15:59:19 +02:00
getopt.c
Make the Python CLI error message style more consistent (GH-128129)
2025-01-11 11:17:35 +02:00
getplatform.c
…
getversion.c
…
hamt.c
gh-111178: Fix function signatures for multiple tests (#131496)
2025-03-20 12:27:03 +01:00
hashtable.c
…
import.c
gh-131238: Remove more includes from pycore_interp.h (#131480)
2025-03-19 23:01:32 +01:00
importdl.c
GH-131238: More refactoring of core header files (GH-131351)
2025-03-17 14:41:05 +00:00
index_pool.c
gh-130740: Move some stdbool.h includes after Python.h (#130738)
2025-03-02 09:56:49 +00:00
initconfig.c
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
instruction_sequence.c
gh-130080: move _Py_EnsureArrayLargeEnough to a separate header so it can be used outside of the compiler (#130930)
2025-03-13 16:02:58 +00:00
instrumentation.c
gh-111178: fix UBSan failures for Python/instrumentation.c (#131608)
2025-03-24 10:58:33 +01:00
interpconfig.c
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
intrinsics.c
gh-131238: Move _Py_VISIT_STACKREF() to pycore_stackref.h (#131560)
2025-03-21 23:24:14 +01:00
jit.c
gh-131238: Add missing pycore_function.h includes for JIT compiler (#131571)
2025-03-21 23:37:49 +00:00
legacy_tracing.c
gh-111178: fix UBSan failures for Python/legacy_tracing.c (#131611)
2025-03-24 11:00:32 +01:00
lock.c
gh-111178: Fix function signatures to fix undefined behavior (#131191)
2025-03-14 09:52:15 +00:00
marshal.c
gh-131238: Add explicit includes to pycore headers (#131257)
2025-03-17 12:32:43 +01:00
modsupport.c
bpo-45325: Add a new 'p' parameter to Py_BuildValue to convert an integer into a Python bool (#28634)
2025-02-18 17:14:11 +00:00
mysnprintf.c
…
mystrtoul.c
…
object_stack.c
…
opcode_targets.h
GH-128534: Fix behavior of branch monitoring for async for (GH-130847)
2025-03-07 14:30:31 +00:00
optimizer_analysis.c
GH-131498: Remove conditional stack effects (GH-131499)
2025-03-20 15:39:38 +00:00
optimizer_bytecodes.c
GH-131729: Code-gen better liveness analysis (GH-131732)
2025-03-26 15:21:35 +00:00
optimizer_cases.c.h
GH-131729: Code-gen better liveness analysis (GH-131732)
2025-03-26 15:21:35 +00:00
optimizer_symbols.c
GH-131331: Rename "not" to "invert" (GH-131334)
2025-03-20 16:59:41 -07:00
optimizer.c
gh-111178: fix UBSan failures for _PyExecutorObject (#131610)
2025-03-24 10:53:23 +01:00
parking_lot.c
gh-76785: Improved Subinterpreters Compatibility with 3.12 (1/2) (gh-126704)
2024-11-11 15:58:46 -07:00
pathconfig.c
gh-111924: Fix data races when swapping allocators (gh-130287)
2025-02-20 11:31:15 -05:00
perf_jit_trampoline.c
gh-131238: Add explicit includes to pycore headers (#131257)
2025-03-17 12:32:43 +01:00
perf_trampoline.c
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
preconfig.c
…
pyarena.c
Chore: Fix typo in pyarena.c (#126527)
2024-11-07 16:37:41 +01:00
pyctype.c
…
pyfpe.c
…
pyhash.c
…
pylifecycle.c
gh-131238: Add pycore_interpframe_structs.h header (#131553)
2025-03-21 17:19:47 +00:00
pymath.c
…
pystate.c
gh-131238: Add pycore_interpframe_structs.h header (#131553)
2025-03-21 17:19:47 +00:00
pystrcmp.c
…
pystrhex.c
…
pystrtod.c
gh-120026: soft deprecate Py_HUGE_VAL macro (#120027)
2024-11-01 22:04:31 +00:00
Python-ast.c
gh-131238: Add explicit includes to pycore headers (#131257)
2025-03-17 12:32:43 +01:00
Python-tokenize.c
gh-111178: Fix function signatures for test_types (#131455)
2025-03-19 13:46:17 +00:00
pythonrun.c
gh-131238: Remove more includes from pycore_interp.h (#131480)
2025-03-19 23:01:32 +01:00
pytime.c
gh-131238: Remove pycore_runtime.h from pycore_pystate.h (#131356)
2025-03-19 17:33:24 +01:00
qsbr.c
gh-131238: Add explicit includes to pycore headers (#131257)
2025-03-17 12:32:43 +01:00
README
…
specialize.c
gh-130931: Add pycore_interpframe.h internal header (#131249)
2025-03-19 18:17:44 +01:00
stackrefs.c
GH-127705: Use _PyStackRefs in the default build. (GH-127875)
2025-03-10 14:06:56 +00:00
stdlib_module_names.h
gh-126925: Modify how iOS test results are gathered (#127592)
2024-12-09 13:28:57 +08:00
structmember.c
gh-117657: TSAN Fix races in PyMember_Get and PyMember_Set for C extensions (GH-123211)
2024-12-03 09:41:53 -05:00
suggestions.c
GH-131238: Core header refactor (GH-131250)
2025-03-17 09:19:04 +00:00
symtable.c
gh-130881: Handle conditionally defined annotations (#130935)
2025-03-26 03:48:19 +00:00
sysmodule.c
GH-131296: fix clang-cl warnings in sysmodule.c (#131304)
2025-03-20 16:29:21 +00:00
thread_nt.h
gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805)
2024-10-02 09:17:49 -07:00
thread_pthread_stubs.h
gh-125161: return non zero value in pthread_self on wasi (#125303)
2024-10-13 20:59:41 +05:30
thread_pthread.h
gh-87135: Hang non-main threads that attempt to acquire the GIL during finalization (GH-105805)
2024-10-02 09:17:49 -07:00
thread.c
gh-131238: Add explicit includes to pycore headers (#131257)
2025-03-17 12:32:43 +01:00
tier2_engine.md
…
traceback.c
gh-131238: Remove includes from pycore_interp.h (#131495)
2025-03-20 11:35:23 +00:00
tracemalloc.c
gh-131296: fix clang-cl warning in tracemalloc.c (#131514)
2025-03-22 10:38:47 +01:00
uniqueid.c
gh-128923: Use zero to indicate unassigned unique id (#128925)
2025-01-17 16:42:27 +01:00
vm-state.md
…

README 

Miscellaneous source files for the main Python shared library