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254 Open 3,036 Closed
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Issues list

random.randint performance improvement performance Performance or resource usage stdlib Python modules in the Lib dir type-feature A feature request or enhancement
#131435 opened Mar 18, 2025 by dg-pb
1
Avoid binding functions to temporaries in random.py performance Performance or resource usage stdlib Python modules in the Lib dir type-feature A feature request or enhancement
#131269 opened Mar 15, 2025 by colesbury
@rhettinger
1
Use Windows IFileOperation to implement copying/moving/deleting in pathlib OS-windows performance Performance or resource usage topic-pathlib type-feature A feature request or enhancement
#131262 opened Mar 14, 2025 by barneygale
1
Use pystats for free threading performance statistics interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-free-threading type-feature A feature request or enhancement
#131253 opened Mar 14, 2025 by colesbury
@mpage
Dictionary max modifications threshold too low for JIT interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-JIT
#131194 opened Mar 13, 2025 by Fidget-Spinner
1
bytes.fromhex is much slower than binascii.a2b_hex interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage type-bug An unexpected behavior, bug, or error
#131171 opened Mar 12, 2025 by dgrisby
@picnixz
8
Let clang on Linux and clang-cl on Windows "see" more optimizing macros build The build process and cross-build performance Performance or resource usage type-feature A feature request or enhancement
#131033 opened Mar 10, 2025 by chris-eibl
Consider doing something about -fzero-call-used-regs and the tail-calling interpreter build The build process and cross-build interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage type-feature A feature request or enhancement
#130961 opened Mar 7, 2025 by nelhage
JIT: remove jumps at the end of every micro op on aarch64 3.14 new features, bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-JIT triaged The issue has been accepted as valid by a triager.
#130887 opened Mar 5, 2025 by diegorusso
@diegorusso
Move reftracer call from _Py_Dealloc to non-inlined function call performance Performance or resource usage topic-free-threading type-feature A feature request or enhancement
#130706 opened Feb 28, 2025 by colesbury
3
Optimize reference counting overhead of LOAD_FAST variants interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage type-feature A feature request or enhancement
#130704 opened Feb 28, 2025 by mpage
Using the unit tests as the PGO task has problems build The build process and cross-build performance Performance or resource usage type-feature A feature request or enhancement
#130701 opened Feb 28, 2025 by nascheme
Explore if the upcoming XCode 16.3 supports tail calling interpreters OS-mac performance Performance or resource usage type-feature A feature request or enhancement
#130633 opened Feb 27, 2025 by Fidget-Spinner
2
Better constant narrowing in the JIT optimizer interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-JIT type-feature A feature request or enhancement
#130415 opened Feb 21, 2025 by brandtbucher
4 of 17 tasks
@brandtbucher
8
Pasting in new REPL is slow OS-windows performance Performance or resource usage stdlib Python modules in the Lib dir topic-repl Related to the interactive shell type-bug An unexpected behavior, bug, or error
#130328 opened Feb 20, 2025 by natedogith1
8
Improve speed of stdlib functions by replacing re uses performance Performance or resource usage stdlib Python modules in the Lib dir type-feature A feature request or enhancement
#130167 opened Feb 16, 2025 by donBarbos
7
Load target address earlier for tail call interpreter interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage
#129976 opened Feb 10, 2025 by aconz2
7
Speed up sqlite3.Row extension-modules C modules in the Modules dir performance Performance or resource usage topic-sqlite3 type-feature A feature request or enhancement
#129926 opened Feb 10, 2025 by erlend-aasland
1
@erlend-aasland
Remove _DYNAMIC_EXIT interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-JIT type-feature A feature request or enhancement
#129715 opened Feb 6, 2025 by brandtbucher
@brandtbucher
1
json.dump(x,f) is much slower than f.write(json.dumps(x)) extension-modules C modules in the Modules dir performance Performance or resource usage stdlib Python modules in the Lib dir type-bug An unexpected behavior, bug, or error
#129711 opened Feb 6, 2025 by wjmelements
7
Add free-threading optimization for _PyFloat_FromDouble_ConsumeInputs interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-free-threading type-feature A feature request or enhancement
#129695 opened Feb 5, 2025 by nascheme
@nascheme
Provide an "aggressive" specialization/JIT mode for debugging interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-JIT type-feature A feature request or enhancement
#129386 opened Jan 28, 2025 by brandtbucher
@brandtbucher
4
Try to avoid invoking a new process to determine the Windows version in the platform module OS-windows performance Performance or resource usage type-feature A feature request or enhancement
#129294 opened Jan 25, 2025 by tomergert
2
Performance regression with cyclic GC vs 3.13 performance Performance or resource usage type-bug An unexpected behavior, bug, or error
#129210 opened Jan 23, 2025 by nascheme
2
Missing fast path in PyLong_From*() functions for compact integers interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage type-feature A feature request or enhancement
#129149 opened Jan 21, 2025 by chris-eibl
1
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