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Issues list

Speed up socket.errorTab and lazy import selectors performance Performance or resource usage type-feature A feature request or enhancement
#121423 opened Jul 6, 2024 by Wulian233
MSVC pragma to turn compiler optimization off around the _PyEval_EvalFrameDefault is no longer necessary OS-windows performance Performance or resource usage type-bug An unexpected behavior, bug, or error
#121338 opened Jul 3, 2024 by mdboom
1
Limit the reading size from pipes to their default buffer size on Unix systems performance Performance or resource usage type-feature A feature request or enhancement
#121313 opened Jul 3, 2024 by aplaikner
Add fast path to deepcopy() for empty list/tuple/dict/set performance Performance or resource usage stdlib Python modules in the Lib dir
#121192 opened Jun 30, 2024 by lgeiger
9
Add names to gathered stats for some events. performance Performance or resource usage
#120996 opened Jun 25, 2024 by markshannon
1
Speed up open().read() pattern by reducing the number of system calls performance Performance or resource usage type-feature A feature request or enhancement
#120754 opened Jun 19, 2024 by cmaloney
1
4
Add tier 2 partial evaluation pass. 3.14 new features, bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage
#120619 opened Jun 17, 2024 by markshannon
Tier 2 optimizer: refactor to reuse constant symbols performance Performance or resource usage type-feature A feature request or enhancement
#120325 opened Jun 10, 2024 by Fidget-Spinner
@Fidget-Spinner
Tier 2 optimizer: constant propagate through attribute loads performance Performance or resource usage type-feature A feature request or enhancement
#120323 opened Jun 10, 2024 by Fidget-Spinner
@Fidget-Spinner
2
Faster decode and find_max_char implementations. performance Performance or resource usage type-feature A feature request or enhancement
#120196 opened Jun 7, 2024 by rhpvorderman
3
3.130b1 Performance Issue with Free Threading build performance Performance or resource usage topic-free-threading type-bug An unexpected behavior, bug, or error
#120040 opened Jun 4, 2024 by xbit18
19
Deferred reference counts 3.14 new features, bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage type-feature A feature request or enhancement
#120024 opened Jun 4, 2024 by markshannon
1
JIT: improve memory allocation 3.14 new features, bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-JIT type-feature A feature request or enhancement
#119730 opened May 29, 2024 by diegorusso
@brandtbucher
6
JIT: improve AArch64 code generation 3.14 new features, bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage topic-JIT type-feature A feature request or enhancement
#119726 opened May 29, 2024 by diegorusso
2 of 5 tasks
@diegorusso
2
Better calibration of str.find aka FASTSEARCH performance Performance or resource usage type-feature A feature request or enhancement
#119702 opened May 29, 2024 by dg-pb
@sweeneyde
5
Stop manually interning strings in pathlib performance Performance or resource usage topic-pathlib
#119518 opened May 24, 2024 by barneygale
6
Improve performance of os.walk() performance Performance or resource usage
#119169 opened May 19, 2024 by barneygale
1
Further improve import time of importlib.metadata performance Performance or resource usage topic-importlib type-feature A feature request or enhancement
#118761 opened May 8, 2024 by layday
Dramatic slowdown with random.random on free-threading build. performance Performance or resource usage topic-free-threading
#118392 opened Apr 29, 2024 by corona10
5
Increase fraction of code executed by tier 2. 3.13 bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage
#118093 opened Apr 19, 2024 by markshannon
2 of 3 tasks
Inspect module is prohibitively expensive to import performance Performance or resource usage type-feature A feature request or enhancement
#117865 opened Apr 14, 2024 by jaraco
9
pickle.load() significantly slows down with each call on Windows11 but not on Linux OS-windows performance Performance or resource usage type-bug An unexpected behavior, bug, or error
#117545 opened Apr 4, 2024 by msspad
2
Choose number of replications based on data 3.13 bugs and security fixes interpreter-core (Objects, Python, Grammar, and Parser dirs) performance Performance or resource usage
#117453 opened Apr 2, 2024 by markshannon
@mdboom
1
Improve performance of startswith, endswith, count, *find, and *index methods for str, bytes and bytearray 3.13 bugs and security fixes performance Performance or resource usage type-feature A feature request or enhancement
#117431 opened Apr 1, 2024 by eendebakpt
3
performance: can we update io.DEFAULT_BUFFER_SIZE to make python IO 3 times faster? :) performance Performance or resource usage stdlib Python modules in the Lib dir topic-IO
#117151 opened Mar 22, 2024 by morotti
9
ProTip! What’s not been updated in a month: updated:<2024-06-06.