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ID Activity Title Status Creator
(no priority set)
45116 24 months ago Performance regression 3.10b1: inlining issue in the big _PyEval_EvalFrameDefault() function with Visual Studio (MSC) has patch has PR open neonene
43760 24 months ago The DISPATCH() macro is not as efficient as it could be (move PyThreadState.use_tracing) has PR open Mark.Shannon
43683 24 months ago Handle generator (and coroutine) state in the bytecode. has PR open Mark.Shannon
deferred blocker
46841 24 months ago Inline bytecode caches has PR open brandtbucher
normal
47120 24 months ago Make all jump opcodes relative has PR open iritkatriel
47070 24 months ago Improve performance of array_inplace_repeat has PR open pieter.eendebak
47053 24 months ago Reduce de-optimization in BINARY_OP_INPLACE_ADD_UNICODE has PR open Dennis Sweeney
47045 24 months ago Remove the RESUME instruction has PR open Mark.Shannon
46799 24 months ago ShareableList memory bloat and performance improvement has patch has PR open tcl326
46705 24 months ago Memory optimization for set.issubset has patch has PR open panda1200
46600 24 months ago Python built with clang -O0 allocates 10x more stack memory than clang -O3 on a Python function call has patch has PR open vstinner
46564 24 months ago Near zero-cost super().meth() calls via adaptive superinstructions has PR open kj
46509 24 months ago Type-specialized Py_DECREF has PR open Dennis Sweeney
46372 24 months ago int/float specializations should mutate the LHS in-place when possible has PR open brandtbucher
46212 24 months ago Avoid temporary `varargs` tuple creation in argument passing has patch has PR open colorfulappl
46192 24 months ago Optimize builtin functions min() and max() has patch has PR open colorfulappl
46055 24 months ago Speed up binary shifting operators has PR open xuxinhang
46020 24 months ago Optimize long_pow for the common case has PR open rhettinger
45944 24 months ago Avoid calling isatty() for most open() calls has PR open collinanderson
45923 24 months ago Improve performance of sys.settracing based tools. has PR open Mark.Shannon
45829 24 months ago Remove C stack use by specializing BINARY_SUBSCR, STORE_SUBSCR, LOAD_ATTR, and STORE_ATTR has PR open Mark.Shannon
45819 24 months ago Avoid releasing the GIL in nonblocking socket operations has patch has PR open jcristharif
45753 24 months ago Further speed up Python-to-Python calls. has PR open Mark.Shannon
45575 24 months ago Use a more principled approach to freelists has PR open Mark.Shannon
45565 24 months ago More LOAD_ATTR specializations has PR open kj
45542 24 months ago Using multiple comparison operators can cause performance issues has PR open akuvfx
45417 24 months ago Enum creation non-linear in the number of values has patch has PR open olliemath
45295 24 months ago Speed up classmethod calls via LOAD_METHOD has PR open kj
45260 24 months ago Implement superinstruction UNPACK_SEQUENCE_ST has PR open zhangchaospecial
44850 24 months ago Could operator.methodcaller be optimized using LOAD_METHOD? has PR open Antony.Lee
44525 24 months ago Implement CALL_FUNCTION adaptive interpreter optimizations has PR open kj
44334 24 months ago Use bytearray in urllib.unquote_to_bytes has PR open eng.mustafaelagamey
44283 24 months ago Add jump table for certain safe match-case statements has patch has PR open Dennis Sweeney
44167 24 months ago ipaddress.IPv6Address.is_private makes redundant checks has PR open mjpieters
43693 24 months ago Logically merge cell and locals array. They are already contiguous in memory has PR open Mark.Shannon
43684 24 months ago Add combined opcodes has PR open gvanrossum
42454 24 months ago Move slice creation to the compiler for constants has PR open BTaskaya
42197 24 months ago Disable automatic update of frame locals during tracing has PR open fabioz
42085 24 months ago Add dedicated slot for sending values has PR open v2m
41843 24 months ago Reenable sendfile in shutil.copyfile() on Solaris has PR open kulikjak
40988 24 months ago singledispatchmethod significantly slower than singledispatch has PR open CaselIT
40225 24 months ago recursive call within generator expression is O(depth) has patch has PR open brendon-zhang@hotmail.com
39131 24 months ago signing needs two serialisation passes has PR open jap
39102 24 months ago Increase Enum performance has patch has PR open MrMrRobat
38693 24 months ago Use f-strings instead of str.format within importlib has PR open gregory.p.smith
37935 24 months ago Improve performance of pathlib.scandir() has PR open Shai
37907 24 months ago speed-up PyLong_As*() for large longs has PR open sir-sigurd
37842 24 months ago Initialize Py_buffer variables more efficiently has PR open sir-sigurd
37837 24 months ago add internal _PyLong_FromUnsignedChar() function has PR open sir-sigurd
37355 24 months ago SSLSocket.read does a GIL round-trip for every 16KB TLS record has PR open josnyder
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