gh-103000: Optimise dataclasses.asdict for the common case#104364
Merged
Uh oh!
There was an error while loading. Please reload this page.
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
Co-authored-by: David Ellis <ducksual@gmail.com>
AlexWaygood changed the title dataclasses.asdict for the common casedataclasses.asdict for the common case
carljm added a commit to carljm/cpython that referenced this pull request May 10, 2023
* main: pythonGH-102181: Improve specialization stats for SEND (pythonGH-102182) pythongh-103000: Optimise `dataclasses.asdict` for the common case (python#104364) pythongh-103538: Remove unused TK_AQUA code (pythonGH-103539) pythonGH-87695: Fix OSError from `pathlib.Path.glob()` (pythonGH-104292) pythongh-104263: Rely on Py_NAN and introduce Py_INFINITY (pythonGH-104202) pythongh-104010: Separate and improve docs for `typing.get_origin` and `typing.get_args` (python#104013) pythongh-101819: Adapt _io._BufferedIOBase_Type methods to Argument Clinic (python#104355) pythongh-103960: Dark mode: invert image brightness (python#103983) pythongh-104252: Immortalize Py_EMPTY_KEYS (pythongh-104253) pythongh-101819: Clean up _io windows console io after pythongh-104197 (python#104354) pythongh-101819: Harden _io init (python#104352) pythongh-103247: clear the module cache in a test in test_importlib/extensions/test_loader.py (pythonGH-104226) pythongh-103848: Adds checks to ensure that bracketed hosts found by urlsplit are of IPv6 or IPvFuture format (python#103849) pythongh-74895: adjust tests to work on Solaris (python#104326) pythongh-101819: Refactor _io in preparation for module isolation (python#104334) pythongh-90953: Don't use deprecated AST nodes in clinic.py (python#104322) pythongh-102327: Extend docs for "url" and "headers" parameters to HTTPConnection.request() pythongh-104328: Fix typo in ``typing.Generic`` multiple inheritance error message (python#104335)
carljm added a commit to carljm/cpython that referenced this pull request May 11, 2023
* main: (27 commits) pythongh-87849: fix SEND specialization family definition (pythonGH-104268) pythongh-101819: Adapt _io.IOBase.seek and _io.IOBase.truncate to Argument Clinic (python#104384) pythongh-101819: Adapt _io._Buffered* methods to Argument Clinic (python#104367) pythongh-101819: Refactor `_io` futher in preparation for module isolation (python#104369) pythongh-101819: Adapt _io.TextIOBase methods to Argument Clinic (python#104383) pythongh-101117: Improve accuracy of sqlite3.Cursor.rowcount docs (python#104287) pythonGH-92184: Convert os.altsep to '/' in filenames when creating ZipInfo objects (python#92185) pythongh-104357: fix inlined comprehensions that close over iteration var (python#104368) pythonGH-90208: Suppress OSError exceptions from `pathlib.Path.glob()` (pythonGH-104141) pythonGH-102181: Improve specialization stats for SEND (pythonGH-102182) pythongh-103000: Optimise `dataclasses.asdict` for the common case (python#104364) pythongh-103538: Remove unused TK_AQUA code (pythonGH-103539) pythonGH-87695: Fix OSError from `pathlib.Path.glob()` (pythonGH-104292) pythongh-104263: Rely on Py_NAN and introduce Py_INFINITY (pythonGH-104202) pythongh-104010: Separate and improve docs for `typing.get_origin` and `typing.get_args` (python#104013) pythongh-101819: Adapt _io._BufferedIOBase_Type methods to Argument Clinic (python#104355) pythongh-103960: Dark mode: invert image brightness (python#103983) pythongh-104252: Immortalize Py_EMPTY_KEYS (pythongh-104253) pythongh-101819: Clean up _io windows console io after pythongh-104197 (python#104354) pythongh-101819: Harden _io init (python#104352) ...
Sign up for freeto 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.
Now that PEP 709 has been implemented, this change speeds up the following benchmark by 15% on my machine (Windows, PGO-optimised non-debug build):
Benchmark:
This idea was originally @DavidCEllis's, but prior to PEP 709, comprehensions had too much overhead to make it worthwhile. Now that PEP 709 has been implemented, the impact of the patch seems pretty different.
Co-authored-by: David Ellis ducksual@gmail.com