cpython/Python
Sam Gross e6d6d5dcc0
gh-114746: Avoid quadratic behavior in free-threaded GC (GH-114817)
The free-threaded build's GC implementation is non-generational, but was
scheduled as if it were collecting a young generation leading to
quadratic behavior. This increases the minimum threshold and scales it
to the number of live objects as we do for the old generation in the
default build.

Note that the scheduling is still not thread-safe without the GIL. Those
changes will come in later PRs.

A few tests, like "test_sneaky_frame_object" rely on prompt scheduling
of the GC. For now, to keep that test passing, we disable the scaled
threshold after calls like `gc.set_threshold(1, 0, 0)`.
2024-02-01 10:26:23 +01:00
..
clinic gh-113626: Add allow_code parameter in marshal functions (GH-113648) 2024-01-16 18:05:15 +02:00
deepfreeze gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
frozen_modules gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
Python-ast.c GH-113655: Lower the C recursion limit on various platforms (GH-113944) 2024-01-16 09:32:01 +00:00
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
README
_warnings.c gh-111789: Use PyDict_GetItemRef() in Python/_warnings.c (gh-112080) 2023-11-27 18:58:43 +01:00
adaptive.md GH-98686: Get rid of "adaptive" and "quick" instructions (GH-99182) 2022-11-09 10:50:09 -08:00
asdl.c bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933) 2021-03-23 20:47:40 +01:00
asm_trampoline.S gh-96143: Move the perf trampoline files to the Python directory (#98675) 2022-10-25 23:34:22 +01:00
assemble.c GH-111485: Generate instruction and uop metadata (GH-113287) 2023-12-20 14:27:25 +00:00
ast.c GH-113655: Lower the C recursion limit on various platforms (GH-113944) 2024-01-16 09:32:01 +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 gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333) 2023-02-28 14:16:39 -07:00
bltinmodule.c gh-90350: Optimize builtin functions min() and max() (GH-30286) 2023-12-11 21:27:06 +02:00
bootstrap_hash.c gh-110014: Fix bootstrap_hash.c: remove debug code (#110161) 2023-09-30 22:21:20 +00:00
bytecodes.c Update outdated comment in ``Python/bytecodes.c`` (#114522) 2024-01-24 09:14:15 -08:00
ceval.c GH-113464: Add a JIT backend for tier 2 (GH-113465) 2024-01-28 18:48:48 -08:00
ceval_gil.c gh-111964: Implement stop-the-world pauses (gh-112471) 2024-01-23 11:08:23 -07:00
ceval_macros.h Delete unused macro (GH-114238) 2024-01-18 15:49:50 +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-114569: Use PyMem_* APIs for non-PyObjects in compiler (#114587) 2024-01-30 00:04:34 +01:00
condvar.h gh-110014: Fix _POSIX_THREADS and _POSIX_SEMAPHORES usage (#110139) 2023-09-30 19:25:54 +02:00
context.c gh-111968: Unify freelist naming schema to Eric's suggestion (gh-114581) 2024-01-27 00:25:16 +09:00
critical_section.c gh-111569: Implement Python critical section API (gh-111571) 2023-11-08 15:39:29 -07:00
crossinterp.c gh-76785: Avoid Pickled TracebackException for Propagated Subinterpreter Exceptions (gh-113036) 2023-12-13 00:31:30 +00:00
dtoa.c gh-111962: Make dtoa thread-safe in `--disable-gil` builds. (#112049) 2023-12-07 13:47:55 +00:00
dup2.c gh-108765: Python.h no longer includes <unistd.h> (#108783) 2023-09-02 16:50:18 +02:00
dynamic_annotations.c
dynload_hpux.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
dynload_shlib.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
dynload_stub.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
dynload_win.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
emscripten_signal.c GH-108614: Unbreak emscripten build (GH-109132) 2023-09-08 17:54:45 +01:00
emscripten_trampoline.c gh-106213: Make Emscripten trampolines work with JSPI (GH-106219) 2023-09-15 15:04:21 -07:00
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-113710: Add a tier 2 peephole optimization pass. (GH-114487) 2024-01-24 12:08:31 +00:00
fileutils.c gh-112970: Detect and use closefrom() when available (#112969) 2023-12-12 11:25:27 +01:00
flowgraph.c gh-114569: Use PyMem_* APIs for non-PyObjects in compiler (#114587) 2024-01-30 00:04:34 +01:00
formatter_unicode.c gh-92536: Remove PyUnicode_READY() calls (#105210) 2023-06-02 01:33:17 +02:00
frame.c gh-109094: replace frame->prev_instr by frame->instr_ptr (#109095) 2023-10-26 13:43:10 +00:00
frozen.c gh-106560: Fix redundant declarations in Python/frozen.c (#112612) 2023-12-03 12:18:24 +01:00
frozenmain.c gh-110014: Include explicitly <unistd.h> header (#110155) 2023-09-30 20:06:45 +00:00
future.c gh-106320: Remove more private _PyUnicode C API functions (#106382) 2023-07-03 22:35:46 +00:00
gc.c gh-112529: Implement GC for free-threaded builds (#114262) 2024-01-25 10:27:36 -08:00
gc_free_threading.c gh-114746: Avoid quadratic behavior in free-threaded GC (GH-114817) 2024-02-01 10:26:23 +01:00
gc_gil.c gh-111968: Use per-thread freelists for generator in free-threading (gh-114189) 2024-01-18 18:15:00 +00:00
generated_cases.c.h GH-112354: `END_FOR` instruction to only pop one value. (GH-114247) 2024-01-24 15:10:17 +00:00
getargs.c gh-65210: Add const qualifiers in PyArg_VaParseTupleAndKeywords() (GH-105958) 2023-12-04 13:14:56 +02:00
getcompiler.c closes bpo-43278: remove unnecessary leading '\n' from COMPILER when build with GCC/Clang (GH-24606) 2021-02-25 20:24:21 -08:00
getcopyright.c Update copyright years to 2024. (GH-113608) 2024-01-16 21:54:05 +01:00
getopt.c gh-110079: Remove extern "C" { ...} in C code (#110080) 2023-09-29 10:56:49 +02:00
getplatform.c
getversion.c gh-81057: Move Globals in Core Code to _PyRuntimeState (gh-99496) 2022-11-15 09:45:11 -07:00
hamt.c gh-106320: Remove private PyLong C API functions (#108429) 2023-08-24 18:53:50 +02:00
hashtable.c gh-111545: Add Py_HashPointer() function (#112096) 2023-12-06 15:09:22 +01:00
import.c gh-114685: Fix incorrect use of PyBUF_READ in import.c (GH-114686) 2024-01-29 11:37:06 +02:00
importdl.c gh-88402: Add new sysconfig variables on Windows (GH-110049) 2023-10-04 22:50:29 +00:00
initconfig.c gh-73965: Move PYTHON_HISTORY into the correct usage section (#113798) 2024-01-08 11:58:58 +02:00
instrumentation.c GH-113486: Do not emit spurious PY_UNWIND events for optimized calls to classes. (GH-113680) 2024-01-05 09:45:22 +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-113464: Add a JIT backend for tier 2 (GH-113465) 2024-01-28 18:48:48 -08:00
legacy_tracing.c gh-103615: Use local events for opcode tracing (GH-109472) 2023-11-03 16:39:50 +00:00
lock.c gh-111964: Add _PyRWMutex a "readers-writer" lock (gh-112859) 2023-12-15 18:56:55 -07:00
marshal.c gh-113626: Add allow_code parameter in marshal functions (GH-113648) 2024-01-16 18:05:15 +02:00
modsupport.c gh-84489: Properly handle trailing spaces in Py_BuildValue() format strings (GH-21158) 2023-10-11 14:44:06 +03:00
mysnprintf.c Add a warning message about PyOS_snprintf (#95993) 2022-10-07 11:49:53 -07:00
mystrtoul.c gh-108765: Python.h no longer includes <ctype.h> (#108831) 2023-09-03 18:54:27 +02:00
object_stack.c gh-111968: Unify freelist naming schema to Eric's suggestion (gh-114581) 2024-01-27 00:25:16 +09:00
opcode_targets.h GH-111485: Generate `TARGET` table for computed goto dispatch. (GH-113319) 2023-12-20 15:09:12 +00:00
optimizer.c GH-113464: Add a JIT backend for tier 2 (GH-113465) 2024-01-28 18:48:48 -08:00
optimizer_analysis.c GH-113710: Add a tier 2 peephole optimization pass. (GH-114487) 2024-01-24 12:08:31 +00:00
parking_lot.c gh-112606: Use pthread_cond_timedwait_relative_np() in parking_lot.c when available (#112616) 2024-01-30 22:22:17 +01:00
pathconfig.c gh-110079: Remove extern "C" { ...} in C code (#110080) 2023-09-29 10:56:49 +02:00
perf_trampoline.c gh-113343: Fix error check on mmap(2) (#113342) 2023-12-21 19:28:55 +00:00
preconfig.c gh-106320: Remove private pylifecycle.h functions (#106400) 2023-07-04 09:41:43 +00:00
pyarena.c bpo-43244: Remove the pyarena.h header (GH-25007) 2021-03-24 02:23:01 +01:00
pyctype.c
pyfpe.c bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507) 2022-01-13 09:46:04 +01:00
pyhash.c gh-111545: Add Py_HashPointer() function (#112096) 2023-12-06 15:09:22 +01:00
pylifecycle.c GH-113464: Add a JIT backend for tier 2 (GH-113465) 2024-01-28 18:48:48 -08:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c gh-103323: Remove current_fast_get() unused parameter (#114593) 2024-01-30 11:47:58 +01:00
pystrcmp.c gh-108767: Replace ctype.h functions with pyctype.h functions (#108772) 2023-09-01 18:36:53 +02:00
pystrhex.c gh-108765: pystrhex: Replace stdlib.h abs() with Py_ABS() (#108830) 2023-09-02 23:15:54 +02:00
pystrtod.c gh-108765: Cleanup #include in Python/*.c files (#108977) 2023-09-06 15:56:08 +02:00
pythonrun.c gh-108082: Use PyErr_FormatUnraisable() (GH-111580) 2023-11-02 09:16:34 +00:00
pytime.c gh-112567: Add _PyTimeFraction C API (#112568) 2023-12-01 19:50:10 +01:00
specialize.c gh-114312: Collect stats for unlikely events (GH-114493) 2024-01-25 11:10:51 +00:00
stdlib_module_names.h gh-110721: Remove unused code from suggestions.c after moving PyErr_Display to use the traceback module (#113712) 2024-01-08 15:10:45 +00:00
structmember.c gh-106869: Use new PyMemberDef constant names (#106871) 2023-07-25 15:28:30 +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-113655: Lower the C recursion limit on various platforms (GH-113944) 2024-01-16 09:32:01 +00:00
sysmodule.c gh-114384: Align sys.set_asyncgen_hooks signature in docs to reflect implementation (#114385) 2024-01-21 13:49:49 +01:00
thread.c gh-84570: Add Timeouts to SendChannel.send() and RecvChannel.recv() (gh-110567) 2023-10-17 23:05:49 +00:00
thread_nt.h GH-110829: Ensure Thread.join() joins the OS thread (#110848) 2023-11-04 13:59:24 +00:00
thread_pthread.h gh-81925: Implement native thread ids for kFreeBSD (#111761) 2023-11-09 21:02:30 +01:00
thread_pthread_stubs.h GH-110829: Ensure Thread.join() joins the OS thread (#110848) 2023-11-04 13:59:24 +00:00
traceback.c GH-113655: Lower the C recursion limit on various platforms (GH-113944) 2024-01-16 09:32:01 +00:00
tracemalloc.c gh-108765: Cleanup #include in Python/*.c files (#108977) 2023-09-06 15:56:08 +02:00
vm-state.md High level docs for the VM state (#111621) 2023-11-01 22:55:10 +00:00

README

Miscellaneous source files for the main Python shared library