f4f82f0ab6
gh-133560: Clarified parser.md doc for pegen parser issue in using the existing Grammar/python.gram file. (GH-139194)
...
Co-authored-by: Petr Viktorin <encukou@gmail.com >
2026-05-01 10:11:53 +02:00
1575a81bf2
GH-148726: Forward-port generational GC. (GH-148746)
...
The replaces the incremental GC with a forward port (from 3.13) of the generational GC.
Co-Authored-By: Neil Schemenauer <nas@arctrix.com >
Co-Authored-By: Zanie Blue <contact@zanie.dev >
Co-Authored-By: Sergey Miryanov <sergey.miryanov@gmail.com >
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com >
2026-04-30 12:19:13 -07:00
85d3bcd4f3
gh-134690: Removed deprecated codetype.co_lnotab ( #134691 )
2026-04-25 19:13:48 +03:00
0274d8304e
InternalDocs: Correct struct path for latin1 singletons in string_interning.md (GH-148358)
2026-04-13 11:45:41 +02:00
668c5723eb
GH-139922: add interpreter types to InternalDocs/interpreter.md (GH-148035)
2026-04-05 23:25:14 +08:00
362145c20e
gh-139109: Document the trace recording interpreter in internaldocs (GH-146110)
2026-03-31 23:25:54 +08:00
60093096ba
gh-146041: Avoid lock in sys.intern() for already interned strings (gh-146072)
...
Fix free-threading scaling bottleneck in sys.intern and `PyObject_SetAttr` by
avoiding the interpreter-wide lock when the string is already interned and
immortalized.
2026-03-24 14:29:37 -04:00
81ef1b7317
gh-144888: Replace bloom filter linked lists with continuous arrays to optimize executor invalidating performance (GH-145873)
2026-03-16 15:58:18 +00:00
7ebe924395
gh-144969: Document that the free threading GC can change ob_tid ( #144972 )
2026-02-19 01:49:09 +01:00
7c44f37170
gh-138122: Extend binary profiling format with full source location and opcode ( #143088 )
...
Co-authored-by: Stan Ulbrych <stan@ulbrych.org >
2025-12-24 16:15:11 +00:00
9e51301234
gh-138122: Allow tachyon to write and read binary output ( #142730 )
2025-12-22 23:57:20 +00:00
cf7a309fbf
gh-119786: Remove mention of _PyThreadState_BumpFramePointer from InternalDocs/interpreter.md ( #141816 )
...
Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com >
2025-12-16 13:49:14 +02:00
a882ae198a
gh-142472: Clean-up _PyStackRef functions (gh-142479)
...
This combines most _PyStackRef functions and macros between the free
threaded and default builds.
- Remove Py_TAG_DEFERRED (same as Py_TAG_REFCNT)
- Remove PyStackRef_IsDeferred (same as !PyStackRef_RefcountOnObject)
2025-12-15 12:03:49 -05:00
a7501f07da
Move doc on structure from devguide to InternalDocs (GH-142237)
...
Co-Authored-By: Paul Ross <apaulross@gmail.com >
Co-Authored-By: Carol Willing <carolcode@willingconsulting.com >
Co-Authored-By: Hugo van Kemenade <hugovk@users.noreply.github.com >
Co-Authored-By: Ezio Melotti <ezio.melotti@gmail.com >
Co-Authored-By: Adam Turner <9087854+aa-turner@users.noreply.github.com >
2025-12-15 15:19:02 +01:00
af2b3e98d8
Link listsort.txt in InternalDocs/README.md ( #142619 )
2025-12-12 10:16:55 +00:00
f2fba4c99a
gh-124379: Document _PyStackRef (gh-142321)
2025-12-08 12:14:50 -05:00
d6d850df89
gh-138122: Don't sample partial frame chains ( #141912 )
2025-12-07 15:53:48 +00:00
572c780aa8
gh-138122: Implement frame caching in RemoteUnwinder to reduce memory reads ( #142137 )
...
This PR implements frame caching in the RemoteUnwinder class to significantly reduce memory reads when profiling remote processes with deep call stacks.
When cache_frames=True, the unwinder stores the frame chain from each sample and reuses unchanged portions in subsequent samples. Since most profiling samples capture similar call stacks (especially the parent frames), this optimization avoids repeatedly reading the same frame data from the target process.
The implementation adds a last_profiled_frame field to the thread state that tracks where the previous sample stopped. On the next sample, if the current frame chain reaches this marker, the cached frames from that point onward are reused instead of being re-read from remote memory.
The sampling profiler now enables frame caching by default.
2025-12-06 22:37:34 +00:00
c25a070759
GH-139653: Only raise an exception (or fatal error) when the stack pointer is about to overflow the stack. (GH-141711)
...
Only raises if the stack pointer is both below the limit *and* above the stack base.
This prevents false positives for user-space threads, as the stack pointer will be outside those bounds
if the stack has been swapped.
2025-11-19 10:16:24 +00:00
c2470b39fa
gh-137959: Fix TIER1_TO_TIER2 macro name in JIT InternalDocs (GH-141496)
...
JIT InternalDocs fix
2025-11-13 14:44:40 +00:00
6393068bde
fix some typos ( #138977 )
2025-09-16 18:33:39 +05:30
097fc12149
Fix typo in stack_protection.md (GH-138876)
2025-09-15 04:53:13 -04:00
a1707e4516
gh-138081: fix some dead links in InternalDocs ( #138082 )
2025-09-11 10:54:16 +02:00
923d68655b
Add internal doc describing the stack protection mechanism (GH137663)
2025-08-13 19:04:25 +01:00
350c58ba4e
GH-135552: Make the GC clear weakrefs later (GH-136189)
...
Fix a bug caused by the garbage collector clearing weakrefs too early. The
weakrefs in the ``tp_subclasses`` dictionary are needed in order to correctly
invalidate type caches (for example, by calling ``PyType_Modified()``).
Clearing weakrefs before calling finalizers causes the caches to not be
correctly invalidated. That can cause crashes since the caches can refer to
invalid objects. Defer the clearing of weakrefs without callbacks until after
finalizers are executed.
2025-08-07 16:32:17 -07:00
698bab5a40
Doc: fix duplicated words ( #136086 )
...
---------
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu >
2025-06-29 18:04:02 -04:00
ceae4edf81
gh-119786: Add InternalDocs/qsbr.md. (gh-135411)
...
Add internal doc for the Quiescent-State Based Reclamation (QSBR) implementation.
2025-06-23 22:09:40 +00:00
0d9d48959e
add async generators section to asyncio internal docs ( #135674 )
2025-06-23 06:22:28 +00:00
cb39410111
Initial internal asyncio docs ( #135469 )
...
Currently focused on `_asynciomodule.c` but could also receive updates about internals of the Python package.
2025-06-17 12:21:41 -07:00
5507eff19c
Improve format of InternalDocs/exception_handling.md ( #134969 )
2025-05-31 14:56:33 +03:00
2cc99b3dd3
Docs: Fix the _PyGenObject_HEAD reference in the InternalDocs/generators.md ( #133739 )
2025-05-18 21:56:58 +05:30
0a1fedb70b
gh-126835: Rename ast_opt.c to ast_preprocess.c and related stuff after moving const folding to the peephole optimizier ( #131830 )
2025-05-04 21:07:35 +03:00
814ca116d5
Docs: fix typo in InternalDocs/garbage_collector.md (gh-133151)
...
Fix typo in `InternalDocs/garbage_collector.md`.
2025-04-29 17:20:50 +00:00
31a500a92b
Add internal docs about the free-threaded GC. (gh-132562)
2025-04-28 13:32:39 -07:00
210f027d02
Fix typo in the garbage_collector.md file ( #132803 )
2025-04-24 16:46:39 +03:00
dc4a7077ac
InternalDocs: Fix outdated struct references in frames.md ( #132613 )
...
Docs: Fix outdated struct references in frames.md
Co-authored-by: alperyoney <alperyoney@fb.com >
2025-04-20 23:24:21 +01:00
a985c9262f
Fix some typos in various doc files (GH-132589)
2025-04-16 18:11:47 +00:00
bfc292abc1
Docs: Fix typo in InternalDocs/jit.md ( #132119 )
2025-04-05 12:36:16 +02:00
149fbb01f2
gh-119786: Fix _PyExecutorObject link at jit.md file ( #131382 )
2025-03-17 21:22:12 +00:00
23cda58348
gh-119786: add JUMP_BACKWARD macro to the Jumps section ( #131213 )
...
add JUMP_BACKWARD opcode macro to the Jumps section
JUMP_BACKWARD opcode macro added to the Jumps section in
interpreter.md file at InternalDocs.
2025-03-16 20:04:39 +00:00
d07e9ebbe8
gh-131306: Remove unused code related to BINARY_SUBSCR ( #131307 )
2025-03-16 16:37:29 +00:00
e9d210bfc2
gh-131170: fix duplicated sections in frames.md file ( #131177 )
...
fix duplicated sections in frames.md file
In the frames.md file at InternalDocs, change the first
duplicated title to Specials, and remove unnecessary content
under the Specials section.
2025-03-13 16:59:19 +03:00
798f8d3ea9
Replace non-breaking spaces with normal spaces ( #130116 )
...
Using normal spaces in place of non-breaking spaces.
2025-02-16 09:33:14 +08:00
828b27680f
GH-126599: Remove the PyOptimizer API (GH-129194)
2025-01-28 16:10:51 -08:00
a5075cd5bd
gh-119786: Fix small typo in AST to CFG to bytecode section in compiler.md ( #129322 )
2025-01-27 16:36:09 +02:00
211f41316b
Fix typo in doc ( #128917 )
2025-01-16 16:32:17 +00:00
e81fe940c9
gh-119786: added InternalDocs/generators.md ( #128524 )
2025-01-16 13:15:52 +00:00
2cf396c368
gh-119786: Fix typos in InternalDocs/parser.md ( #128314 )
2024-12-28 17:05:00 +02:00
c6563f3f22
gh-119786: Fix typos in InternalDocs/frames.md ( #128275 )
...
Fix typos in `InternalDocs/frames.md`
2024-12-26 20:09:15 +05:30
f420bdd29f
gh-119786: Fix typos in InternalDocs/interpreter.md ( #128174 )
2024-12-22 18:34:16 +02:00
chemelnucfin