cpython

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Guido van Rossum 060a96f1a9 gh-116968: Reimplement Tier 2 counters (#117144 )

Introduce a unified 16-bit backoff counter type (``_Py_BackoffCounter``),
shared between the Tier 1 adaptive specializer and the Tier 2 optimizer. The
API used for adaptive specialization counters is changed but the behavior is
(supposed to be) identical.

The behavior of the Tier 2 counters is changed:
- There are no longer dynamic thresholds (we never varied these).
- All counters now use the same exponential backoff.
- The counter for ``JUMP_BACKWARD`` starts counting down from 16.
- The ``temperature`` in side exits starts counting down from 64.

2024-04-04 15:03:27 +00:00

clinic

GH-114695: Add sys._clear_internal_caches (GH-115152)

2024-02-12 09:04:36 +00:00

frozen_modules

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_warnings.c

gh-116664: In _warnings.c, make filters_version access thread-safe (#117374 )

2024-03-29 21:23:28 +01:00

adaptive.md

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asdl.c

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asm_trampoline.S

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assemble.c

gh-117411: move PyFutureFeatures to pycore_symtable.h and make it private (#117412 )

2024-04-02 10:34:49 +00:00

ast_opt.c

GH-113655: Lower the C recursion limit on various platforms (GH-113944)

2024-01-16 09:32:01 +00:00

ast_unparse.c

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ast.c

GH-113655: Lower the C recursion limit on various platforms (GH-113944)

2024-01-16 09:32:01 +00:00

bltinmodule.c

gh-116437: Use new C API PyDict_Pop() to simplify the code (GH-116438)

2024-03-07 11:21:08 +02:00

bootstrap_hash.c

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brc.c

gh-110481: Fix biased reference counting queue initialization. (#117271 )

2024-03-28 09:28:39 -04:00

bytecodes.c

gh-116968: Reimplement Tier 2 counters (#117144 )

2024-04-04 15:03:27 +00:00

ceval_gil.c

gh-116522: Refactor _PyThreadState_DeleteExcept (#117131 )

2024-03-21 11:21:02 -07:00

ceval_macros.h

gh-116968: Reimplement Tier 2 counters (#117144 )

2024-04-04 15:03:27 +00:00

ceval.c

gh-116968: Reimplement Tier 2 counters (#117144 )

2024-04-04 15:03:27 +00:00

codecs.c

gh-111972: Make Unicode name C APIcapsule initialization thread-safe (#112249 )

2023-11-30 11:12:49 +01:00

compile.c

gh-117411: move PyFutureFeatures to pycore_symtable.h and make it private (#117412 )

2024-04-02 10:34:49 +00:00

condvar.h

gh-104530: Enable native Win32 condition variables by default (GH-104531)

2024-02-02 13:50:51 +00:00

config_common.h

gh-76785: Add PyInterpreterConfig Helpers (gh-117170)

2024-04-02 20:35:52 +00:00

context.c

gh-111968: Split _Py_dictkeys_freelist out of _Py_dict_freelist (gh-115505)

2024-02-16 01:01:36 +00:00

critical_section.c

gh-111569: Implement Python critical section API (gh-111571)

2023-11-08 15:39:29 -07:00

crossinterp_data_lookup.h

gh-76785: Improved Subinterpreters Compatibility with 3.12 (gh-115424)

2024-02-13 14:56:49 -07:00

crossinterp_exceptions.h

gh-76785: Raise InterpreterError, Not RuntimeError (gh-117489)

2024-04-03 10:58:39 -06:00

crossinterp.c

gh-76785: Raise InterpreterError, Not RuntimeError (gh-117489)

2024-04-03 10:58:39 -06:00

dtoa.c

gh-91565: Replace bugs.python.org links with Devguide/GitHub ones (GH-91568)

2024-04-01 13:02:07 +00:00

dup2.c

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dynamic_annotations.c

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dynload_hpux.c

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dynload_shlib.c

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dynload_stub.c

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dynload_win.c

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emscripten_signal.c

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emscripten_trampoline.c

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errors.c

gh-111375: Use NULL rather than None in the exception stack to indicate that an exception was handled (#113302 )

2023-12-21 01:46:41 +00:00

executor_cases.c.h

gh-116968: Reimplement Tier 2 counters (#117144 )

2024-04-04 15:03:27 +00:00

fileutils.c

gh-112970: Detect and use closefrom() when available (#112969 )

2023-12-12 11:25:27 +01:00

flowgraph.c

gh-117411: move PyFutureFeatures to pycore_symtable.h and make it private (#117412 )

2024-04-02 10:34:49 +00:00

formatter_unicode.c

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frame.c

GH-116098: Remove dead frame object creation code (GH-116687)

2024-03-12 23:35:28 +00:00

frozen.c

gh-108716: Cleanup remaining deepfreeze infrastructure (#116919 )

2024-03-18 11:13:11 -07:00

frozenmain.c

gh-105716: Fix _PyInterpreterState_IsRunningMain() For Embedders (gh-117140)

2024-03-21 18:20:20 -06:00

future.c

gh-117411: move PyFutureFeatures to pycore_symtable.h and make it private (#117412 )

2024-04-02 10:34:49 +00:00

gc_free_threading.c

GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115)

2024-04-02 11:59:21 +01:00

gc_gil.c

gh-111968: Rename freelist related struct names to Eric's suggestion (gh-115329)

2024-02-14 00:32:51 +00:00

gc.c

GH-115776: Embed the values array into the object, for "normal" Python objects. (GH-116115)

2024-04-02 11:59:21 +01:00

generated_cases.c.h

gh-116968: Reimplement Tier 2 counters (#117144 )

2024-04-04 15:03:27 +00:00

getargs.c

gh-116447: Fix possible UB in arraymodule and getargs (#116459 )

2024-03-08 13:49:52 +03:00

getcompiler.c

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getcopyright.c

Update copyright years to 2024. (GH-113608)

2024-01-16 21:54:05 +01:00

getopt.c

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getplatform.c

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getversion.c

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hamt.c

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hashtable.c

gh-111545: Add Py_HashPointer() function (#112096 )

2023-12-06 15:09:22 +01:00

import.c

GH-108362: Incremental Cycle GC (GH-116206)

2024-03-20 08:54:42 +00:00

importdl.c

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initconfig.c

gh-76785: Add PyInterpreterConfig Helpers (gh-117170)

2024-04-02 20:35:52 +00:00

instrumentation.c

gh-116968: Reimplement Tier 2 counters (#117144 )

2024-04-04 15:03:27 +00:00

interpconfig.c

gh-76785: Fix a Refleak in _interpreters.new_config() (gh-117491)

2024-04-03 01:10:26 +00:00

intrinsics.c

gh-107149: make new opcode util functions private rather than public and unstable (#112042 )

2023-11-14 00:31:02 +00:00

jit.c

GH-116422: Tier2 hot/cold splitting (GH-116813)

2024-03-26 09:35:11 +00:00

legacy_tracing.c

gh-103615: Use local events for opcode tracing (GH-109472)

2023-11-03 16:39:50 +00:00

lock.c

gh-114271: Fix race in Thread.join() (#114839 )

2024-03-16 13:56:30 +01:00

marshal.c

gh-114099: Additions to standard library to support iOS (GH-117052)

2024-03-28 03:59:33 -04:00

modsupport.c

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mysnprintf.c

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mystrtoul.c

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object_stack.c

gh-111968: Split _Py_dictkeys_freelist out of _Py_dict_freelist (gh-115505)

2024-02-16 01:01:36 +00:00

opcode_targets.h

gh-116381: Remove bad specializations, add fail stats (GH-116464)

2024-03-08 00:21:21 +08:00

optimizer_analysis.c

gh-116168: Remove extra _CHECK_STACK_SPACE uops (#117242 )

2024-04-03 17:14:18 +00:00

optimizer_bytecodes.c

gh-117176: Fix compiler warning in Python/optimizer_bytecodes.c (GH-117199)

2024-03-24 20:34:55 +02:00

optimizer_cases.c.h

gh-116168: Remove extra _CHECK_STACK_SPACE uops (#117242 )

2024-04-03 17:14:18 +00:00

optimizer_symbols.c

GH-115819: Eliminate Boolean guards when value is known (GH-116355)

2024-03-05 15:06:00 +00:00

optimizer.c

gh-116968: Reimplement Tier 2 counters (#117144 )

2024-04-04 15:03:27 +00:00

parking_lot.c

gh-108724: Fix _PySemaphore_Wait call during thread deletion (#116483 )

2024-03-08 15:26:36 -05:00

pathconfig.c

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perf_trampoline.c

gh-113343: Fix error check on mmap(2) (#113342 )

2023-12-21 19:28:55 +00:00

preconfig.c

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pyarena.c

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pyctype.c

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pyfpe.c

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pyhash.c

gh-113024: C API: Add PyObject_GenericHash() function (GH-113025)

2024-03-22 20:19:10 +02:00

pylifecycle.c

gh-116522: Refactor _PyThreadState_DeleteExcept (#117131 )

2024-03-21 11:21:02 -07:00

pymath.c

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pystate.c

gh-76785: Raise InterpreterError, Not RuntimeError (gh-117489)

2024-04-03 10:58:39 -06:00

pystrcmp.c

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pystrhex.c

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pystrtod.c

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Python-ast.c

gh-117266: Fix crashes on user-created AST subclasses (GH-117276)

2024-03-28 11:30:31 +01:00

Python-tokenize.c

gh-112943: Correctly compute end offsets for multiline tokens in the tokenize module (#112949 )

2023-12-11 11:44:22 +00:00

pythonrun.c

gh-116437: Use new C API PyDict_Pop() to simplify the code (GH-116438)

2024-03-07 11:21:08 +02:00

pytime.c

gh-63207: Use GetSystemTimePreciseAsFileTime() in time.time() (#116822 )

2024-03-18 17:13:01 +01:00

qsbr.c

gh-115103: Fix unregistering of QSBR state (#116480 )

2024-03-08 12:39:53 -05:00

README

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specialize.c

gh-116968: Reimplement Tier 2 counters (#117144 )

2024-04-04 15:03:27 +00:00

stdlib_module_names.h

gh-114099: Additions to standard library to support iOS (GH-117052)

2024-03-28 03:59:33 -04:00

structmember.c

gh-115011: Improve support of __index__() in setters of members with unsigned integer type (GH-115029)

2024-02-11 12:45:58 +02:00

suggestions.c

gh-113845: Fix a compiler warning in Python/suggestions.c (GH-113949)

2024-01-11 20:31:24 +02:00

symtable.c

gh-117411: move PyFutureFeatures to pycore_symtable.h and make it private (#117412 )

2024-04-02 10:34:49 +00:00

sysmodule.c

gh-116167: Allow disabling the GIL with PYTHON_GIL=0 or -X gil=0 (#116338 )

2024-03-11 11:02:58 -04:00

thread_nt.h

gh-116012: Preserve GetLastError() across calls to TlsGetValue on Windows (GH-116014)

2024-02-28 13:58:25 +00:00

thread_pthread_stubs.h

GH-110829: Ensure Thread.join() joins the OS thread (#110848 )

2023-11-04 13:59:24 +00:00

thread_pthread.h

gh-112536: Add TSAN builds on Github Actions (#116872 )

2024-03-16 11:10:37 +01:00

thread.c

gh-110850: Cleanup PyTime API: PyTime_t are nanoseconds (#115753 )

2024-02-21 11:46:00 +01:00

tier2_engine.md

Docs: fix spelling of the word 'transferring' (#116641 )

2024-03-13 23:53:32 +01:00

traceback.c

gh-117411: move PyFutureFeatures to pycore_symtable.h and make it private (#117412 )

2024-04-02 10:34:49 +00:00

tracemalloc.c

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vm-state.md

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README

Miscellaneous source files for the main Python shared library