gh-81057: Move the Cached Parser Dummy Name to _PyRuntimeState #100277
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
ericsnowcurrently requested review from lysnikolaou and pablogsal as code owners 
✅ Deploy Preview for python-cpython-preview canceled.
|
pablogsal approved these changes Dec 16, 2022
Member
pablogsal left a comment
pablogsal left a comment There was a problem hiding this comment.
Thanks for working on this!
carljm added a commit to carljm/cpython that referenced this pull request Dec 16, 2022
* main: Improve stats presentation for calls. (pythonGH-100274) Better stats for `LOAD_ATTR` and `STORE_ATTR` (pythonGH-100295) pythongh-81057: Move the Cached Parser Dummy Name to _PyRuntimeState (python#100277) Document that zipfile's pwd parameter is a `bytes` object (python#100209) pythongh-99767: mark `PyTypeObject.tp_watched` as internal use only in table (python#100271) Fix typo in introduction.rst (python#100266) pythongh-78997: AttributeError if loading fails in LibraryLoader.__getattr__ pythonGH-100234: Set a default value for random.expovariate() (pythonGH-100235) Remove uninformative itertools recipe (pythonGH-100253) pythonGH-99767: update PyTypeObject docs for type watchers (pythonGH-99928) Move stats for the method cache into the `Py_STAT` machinery (pythonGH-100255) pythonGH-100222: fix typo _py_set_opocde -> _py_set_opcode (pythonGH-100259) pythonGH-100000: Cleanup and polish various watchers code (pythonGH-99998) pythongh-90111: Minor Cleanup for Runtime-Global Objects (pythongh-100254)
shihai1991 added a commit to shihai1991/cpython that referenced this pull request Dec 18, 2022
* origin/main: (1306 commits) Correct CVE-2020-10735 documentation (python#100306) pythongh-100272: Fix JSON serialization of OrderedDict (pythonGH-100273) pythongh-93649: Split tracemalloc tests from _testcapimodule.c (python#99551) Docs: Use `PY_VERSION_HEX` for version comparison (python#100179) pythongh-97909: Fix markup for `PyMethodDef` members (python#100089) pythongh-99240: Reset pointer to NULL when the pointed memory is freed in argument parsing (python#99890) pythongh-99240: Reset pointer to NULL when the pointed memory is freed in argument parsing (python#99890) pythonGH-98831: Add DECREF_INPUTS(), expanding to DECREF() each stack input (python#100205) pythongh-78707: deprecate passing >1 argument to `PurePath.[is_]relative_to()` (pythonGH-94469) pythongh-99540: Constant hash for _PyNone_Type to aid reproducibility (pythonGH-99541) pythongh-100039: enhance __signature__ to work with str and callables (pythonGH-100168) pythongh-99830: asyncio: Document returns of remove_{reader,writer} (python#100302) "Compound statement" docs: Fix with-statement step indexing (python#100286) pythonGH-90043: Handle NaNs in COMPARE_OP_FLOAT_JUMP (pythonGH-100278) Improve stats presentation for calls. (pythonGH-100274) Better stats for `LOAD_ATTR` and `STORE_ATTR` (pythonGH-100295) pythongh-81057: Move the Cached Parser Dummy Name to _PyRuntimeState (python#100277) Document that zipfile's pwd parameter is a `bytes` object (python#100209) pythongh-99767: mark `PyTypeObject.tp_watched` as internal use only in table (python#100271) Fix typo in introduction.rst (python#100266) ...
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit. This suggestion is invalid because no changes were made to the code. Suggestions cannot be applied while the pull request is closed. Suggestions cannot be applied while viewing a subset of changes. Only one suggestion per line can be applied in a batch. Add this suggestion to a batch that can be applied as a single commit. Applying suggestions on deleted lines is not supported. You must change the existing code in this line in order to create a valid suggestion. Outdated suggestions cannot be applied. This suggestion has been applied or marked resolved. Suggestions cannot be applied from pending reviews. Suggestions cannot be applied on multi-line comments. Suggestions cannot be applied while the pull request is queued to merge. Suggestion cannot be applied right now. Please check back later.
We have been lazily creating a singleton parser node in
_PyPegen_dummy_name()and cached it in a static variable. Here we instead statically define/initialize the node as part of_PyRuntimeState. This eliminates one of the remaining global variables, reduces run-time CPU time (and memory usage), and eliminates a minor memory leak.