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Title: Optimize unpack, str.__add__ and fastlocals by youknowone · Pull Request #7293 · RustPython/RustPython · GitHub

Open Graph Title: Optimize unpack, str.__add__ and fastlocals by youknowone · Pull Request #7293 · RustPython/RustPython

X Title: Optimize unpack, str.__add__ and fastlocals by youknowone · Pull Request #7293 · RustPython/RustPython

Description: Summary by CodeRabbit New Features String concatenation via + supported for direct string operands Performance Faster integer arithmetic and range iteration via new fast paths Improved comparison performance for common numeric types Faster global and builtin lookups via exact-dict fast paths and caching Optimized sequence unpacking and loop iteration dispatch Stability Reduced overhead in signal checking with a lightweight fast path

Open Graph Description: Summary by CodeRabbit New Features String concatenation via + supported for direct string operands Performance Faster integer arithmetic and range iteration via new fast paths Improved compa...

X Description: Summary by CodeRabbit New Features String concatenation via + supported for direct string operands Performance Faster integer arithmetic and range iteration via new fast paths Improved compa...

Opengraph URL: https://github.com/RustPython/RustPython/pull/7293

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Optimize unpack, str.__add__ and fastlocals https://github.com/RustPython/RustPython/pull/7293/files#top
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ef3c5ef Remove intermediate Vec allocation in unpack_sequence fast path youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/ef3c5ef996e6e80665f0452e504e8dff7a0ca6a3
b6760e1 Use read-only atomic load before swap in check_signals youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/b6760e169a002f4d096d07c08f1c2219549e2b14
98ea46e Cache builtins downcast in ExecutingFrame for LOAD_GLOBAL youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/98ea46e223baa579f3981087986dbb791e18c632
f3a8d8d Add number Add slot to PyStr for direct str+str dispatch youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/f3a8d8d262e86aa6c33057e1b73aeae99ca1b701
67ed603 Guard FastLocals access in locals() with try_lock on state mutex youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/67ed603466a4ec7f3ce3dcc20143bc7a3b5269ce
b1cf47c Use exact type check for builtins_dict cache youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/b1cf47c83202b3d84a146d95fcdee536a20cf9ea
0af466c Consolidate with_recursion in _cmp to single guard youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/0af466c24cd45910bac471e10123a18861ad82c2
5b9e078 Add opcode-level fast paths for FOR_ITER, COMPARE_OP, BINARY_OP youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/5b9e07890c37959a11bd20747a3d4704baa438ee
4c24868 Also check globals is exact dict for LOAD_GLOBAL fast path youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7293/commits/4c2486899b6694bc5995ad89d94235eb0f18fb42
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