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Title: Thread-safe type operations: type lock, QSBR type-cache reclamation, GC stop-the-world, and interpreter optimizations by youknowone · Pull Request #7416 · RustPython/RustPython · GitHub

Open Graph Title: Thread-safe type operations: type lock, QSBR type-cache reclamation, GC stop-the-world, and interpreter optimizations by youknowone · Pull Request #7416 · RustPython/RustPython

X Title: Thread-safe type operations: type lock, QSBR type-cache reclamation, GC stop-the-world, and interpreter optimizations by youknowone · Pull Request #7416 · RustPython/RustPython

Description: A Python Interpreter written in Rust. Contribute to RustPython/RustPython development by creating an account on GitHub.

Open Graph Description: Introduce vm.state.type_mutex to serialize type mutation and version-tag assignment, matching CPython's free-threading model. Add with_type_lock() helper and split modified/assign_version_tag ...

X Description: Introduce vm.state.type_mutex to serialize type mutation and version-tag assignment, matching CPython's free-threading model. Add with_type_lock() helper and split modified/assign_version_...

Opengraph URL: https://github.com/RustPython/RustPython/pull/7416

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Guard CALL_ALLOC_AND_ENTER_INIT with cached function versionhttps://github.com/RustPython/RustPython/pull/7416/commits/da6633d67ccab95926f1a72ca78683ce47f4262c
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Apply rustfmt and ruff-format fixes to files from earlier commitshttps://github.com/RustPython/RustPython/pull/7416/commits/6fe1fed40c0fd5c3e9c64b64fbeba989309156fb
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Add frame object freelisthttps://github.com/RustPython/RustPython/pull/7416/commits/d26a55387bf68a31839b61a8d86ac30b0bd1b9b7
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Drop frame children directly in tp_clear instead of extractinghttps://github.com/RustPython/RustPython/pull/7416/commits/4c3bb64b247e8b3177d89813d2e826a24eb28ca6
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Untrack objects before tp_clear and guard cross-thread f_localshttps://github.com/RustPython/RustPython/pull/7416/commits/c197615e57ce2812809078a0cafbde0b72d4a11f
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c197615https://github.com/RustPython/RustPython/pull/7416/commits/c197615e57ce2812809078a0cafbde0b72d4a11f
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Skip localsplus heap copy for uniquely referenced dying frameshttps://github.com/RustPython/RustPython/pull/7416/commits/cff6798786961c53a6d01cb1ef308ff6df7a200b
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Stage exact-args call arguments in stack slot buffershttps://github.com/RustPython/RustPython/pull/7416/commits/1888e7df28937083727feac8049a73ee4d5fb127
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Reduce allocations in generic call pathshttps://github.com/RustPython/RustPython/pull/7416/commits/7517364e471ea07f18b3ff60a04c052876c0a84f
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7517364https://github.com/RustPython/RustPython/pull/7416/commits/7517364e471ea07f18b3ff60a04c052876c0a84f
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Skip redundant exc_info restore on frame exithttps://github.com/RustPython/RustPython/pull/7416/commits/71197eb9113336711046be8b5d698c10cb19ae44
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71197ebhttps://github.com/RustPython/RustPython/pull/7416/commits/71197eb9113336711046be8b5d698c10cb19ae44
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Apply rustfmt to gc_state.rshttps://github.com/RustPython/RustPython/pull/7416/commits/bc2927ce9a792c2b316b56005797758acf86c279
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youknowonehttps://github.com/RustPython/RustPython/commits?author=youknowone
bc2927chttps://github.com/RustPython/RustPython/pull/7416/commits/bc2927ce9a792c2b316b56005797758acf86c279
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Avoid empty FuncArgs clone in PyType::callhttps://github.com/RustPython/RustPython/pull/7416/commits/de52aea08f4333b7a2825ef84f6721a8ef9a4166
https://github.com/youknowone
youknowonehttps://github.com/RustPython/RustPython/commits?author=youknowone
de52aeahttps://github.com/RustPython/RustPython/pull/7416/commits/de52aea08f4333b7a2825ef84f6721a8ef9a4166
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Push freelist husks only after tp_clear and child dropshttps://github.com/RustPython/RustPython/pull/7416/commits/e10c44d89e152c91f8bd522a49e912646abe538e
https://github.com/youknowone
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Resolve __set__ and __delete__ together for the descr_set slothttps://github.com/RustPython/RustPython/pull/7416/commits/ebc56c91973a0c71b80904b27ca4a408dc2f7218
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Update type base on __bases__ assignmenthttps://github.com/RustPython/RustPython/pull/7416/commits/e902ad1942a920a94153c6c6ef92efd22dd874a4
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e902ad1https://github.com/RustPython/RustPython/pull/7416/commits/e902ad1942a920a94153c6c6ef92efd22dd874a4
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Fix rollback order, dead weakrefs, and lock-held drops in set_baseshttps://github.com/RustPython/RustPython/pull/7416/commits/bc2aba2c19d4b157aedac82eab4032f2c2e0419a
https://github.com/youknowone
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bc2aba2https://github.com/RustPython/RustPython/pull/7416/commits/bc2aba2c19d4b157aedac82eab4032f2c2e0419a
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Reify number sub-slot wrapper once in update_one_slothttps://github.com/RustPython/RustPython/pull/7416/commits/b8d11f23e6171011a77736843bb35c2ce95f0891
https://github.com/youknowone
youknowonehttps://github.com/RustPython/RustPython/commits?author=youknowone
b8d11f2https://github.com/RustPython/RustPython/pull/7416/commits/b8d11f23e6171011a77736843bb35c2ce95f0891
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Restrict type_cache_after_fork visibility and guard type-cache readshttps://github.com/RustPython/RustPython/pull/7416/commits/a7fc01a2a0064a669f76d6e31993d8b5deecb3d4
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a7fc01ahttps://github.com/RustPython/RustPython/pull/7416/commits/a7fc01a2a0064a669f76d6e31993d8b5deecb3d4
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Guard BinaryOpSubscrGetitem with the cached type versionhttps://github.com/RustPython/RustPython/pull/7416/commits/4d7126a6c2c9df4ab1e70f43db2d2a07e6572929
https://github.com/youknowone
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4d7126ahttps://github.com/RustPython/RustPython/pull/7416/commits/4d7126a6c2c9df4ab1e70f43db2d2a07e6572929
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Call __abstractmethods__ __len__ once in object.__new__https://github.com/RustPython/RustPython/pull/7416/commits/18e847480e683eb6fab388ddab1f9c8dc71aaa0b
https://github.com/youknowone
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Use i64 fast paths for specialized int add/sub/mulhttps://github.com/RustPython/RustPython/pull/7416/commits/6133908d565ae2ef2844dedc887f51743d1d2e91
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6133908https://github.com/RustPython/RustPython/pull/7416/commits/6133908d565ae2ef2844dedc887f51743d1d2e91
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Use i64 fast paths for exact int floordiv and remainderhttps://github.com/RustPython/RustPython/pull/7416/commits/1499b31022a205c99163473a6f0f18b5c93bbd4a
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1499b31https://github.com/RustPython/RustPython/pull/7416/commits/1499b31022a205c99163473a6f0f18b5c93bbd4a
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Skip trashcan and untrack for non-GC-tracked objects in deallochttps://github.com/RustPython/RustPython/pull/7416/commits/70409fab3309336d81179a64af2a80d8a41c1560
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70409fahttps://github.com/RustPython/RustPython/pull/7416/commits/70409fab3309336d81179a64af2a80d8a41c1560
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Merge trashcan depth and defer queue into one thread-local structhttps://github.com/RustPython/RustPython/pull/7416/commits/1b8683bf4a652ea0e4055e79c0ef9ac830ecbce0
https://github.com/youknowone
youknowonehttps://github.com/RustPython/RustPython/commits?author=youknowone
1b8683bhttps://github.com/RustPython/RustPython/pull/7416/commits/1b8683bf4a652ea0e4055e79c0ef9ac830ecbce0
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Check object layout compatibility on __bases__ and __class__ assignmenthttps://github.com/RustPython/RustPython/pull/7416/commits/f85c30dec3b34eaa83323724f7db353f9d0e6506
https://github.com/youknowone
youknowonehttps://github.com/RustPython/RustPython/commits?author=youknowone
f85c30dhttps://github.com/RustPython/RustPython/pull/7416/commits/f85c30dec3b34eaa83323724f7db353f9d0e6506
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Stop the world around GC pointer-reading phaseshttps://github.com/RustPython/RustPython/pull/7416/commits/f7dda037d700ca5f79540cd0f710fd1ce0363cd5
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f7dda03https://github.com/RustPython/RustPython/pull/7416/commits/f7dda037d700ca5f79540cd0f710fd1ce0363cd5
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Add threaded GC vs executing-frame stress snippethttps://github.com/RustPython/RustPython/pull/7416/commits/bca1ad9674e29e1199bbd1587e34a5cbd805fe6c
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bca1ad9https://github.com/RustPython/RustPython/pull/7416/commits/bca1ad9674e29e1199bbd1587e34a5cbd805fe6c
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Serialize fork and GC stop-the-world requestershttps://github.com/RustPython/RustPython/pull/7416/commits/2769945e3ca9d9f85d67e22e454c3090cfd44307
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youknowonehttps://github.com/RustPython/RustPython/commits?author=youknowone
2769945https://github.com/RustPython/RustPython/pull/7416/commits/2769945e3ca9d9f85d67e22e454c3090cfd44307
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Add fork under concurrent GC stop-the-world snippethttps://github.com/RustPython/RustPython/pull/7416/commits/a33d16f955897d35f0a8e0a330cf204c84df25b4
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Detach while acquiring the import lockhttps://github.com/RustPython/RustPython/pull/7416/commits/1b0fa99bf4a4426d9f50f1cfddfdf60dc85aa5a8
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Add concurrent-import vs GC deadlock snippethttps://github.com/RustPython/RustPython/pull/7416/commits/92a4d0001512a147d3e057ddce30c571c7e8c750
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92a4d00https://github.com/RustPython/RustPython/pull/7416/commits/92a4d0001512a147d3e057ddce30c571c7e8c750
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Create call frames untracked and track generators explicitlyhttps://github.com/RustPython/RustPython/pull/7416/commits/d1e5e97531cdf53264b61a27857e3c029fc51f55
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Track escaped call frames lazily at datastack releasehttps://github.com/RustPython/RustPython/pull/7416/commits/ee948401f1cbe85c5b2a14557bd13bdd6299c1f0
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Guard the tracked-frame localsplus invarianthttps://github.com/RustPython/RustPython/pull/7416/commits/2982b66397b00454b7f1d4f12769e77822501727
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Reword frame/dealloc invariant comments and drop needless borrowhttps://github.com/RustPython/RustPython/pull/7416/commits/1fa2d5f5b8c58ed94ab3702904c74394c2d8361b
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1fa2d5fhttps://github.com/RustPython/RustPython/pull/7416/commits/1fa2d5f5b8c58ed94ab3702904c74394c2d8361b
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Move type SetAttr slot rewrite inside the type lock and tighten cache readshttps://github.com/RustPython/RustPython/pull/7416/commits/bd4b3718bfbfb780cc3e192ba55c8a54247d6a96
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bd4b371https://github.com/RustPython/RustPython/pull/7416/commits/bd4b3718bfbfb780cc3e192ba55c8a54247d6a96
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Capture the type version before reading mutable slots in specializershttps://github.com/RustPython/RustPython/pull/7416/commits/2ae9fb83dffa738082a1a248d4b958062f6a70f8
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Use _get_method_dict for the test_type check in the test runnerhttps://github.com/RustPython/RustPython/pull/7416/commits/68e8b91d11859e273f2388d465ca695ff4fd311f
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Fix lint hooks: cspell dictionary entries, spelling fix, formattinghttps://github.com/RustPython/RustPython/pull/7416/commits/ec8b128c74e5c6bc2d7659a8dd8af3f63b21a294
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Rebuild all slots for type and descendants on __bases__ reassignmenthttps://github.com/RustPython/RustPython/pull/7416/commits/9d44aaf62ffda29d644b6aff5bb7ea81e81306e9
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Derive the thread-local frame stack from the frame chainhttps://github.com/RustPython/RustPython/pull/7416/commits/ab0cddb3f6402b95b2761098ecb663b5e733abb2
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ab0cddbhttps://github.com/RustPython/RustPython/pull/7416/commits/ab0cddb3f6402b95b2761098ecb663b5e733abb2
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Inherit sub-slot fallback into the field being resolvedhttps://github.com/RustPython/RustPython/pull/7416/commits/ae106abb4ad03b911bac4de4f74326a47cd04b16
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Gate type_cache_after_fork to its fork caller and use Self in downcasthttps://github.com/RustPython/RustPython/pull/7416/commits/8f4f7a5e5449269c7f229d16bb7f80164d190cb3
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Address review nits in frame and faulthandlerhttps://github.com/RustPython/RustPython/pull/7416/commits/2652f4d29e1173cdc5cf609ec6d865c9e4fb5aed
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Gate unix-only QSBR methods to their call siteshttps://github.com/RustPython/RustPython/pull/7416/commits/ac2ce2bf3ef48e00c4856aca1467f4f1a349096c
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Visit the function closure tuple as a GC edgehttps://github.com/RustPython/RustPython/pull/7416/commits/f843473f99efe965def5e0a6cd21de5641a05e51
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Unmark test_sni_callback_refcycle in test_sslhttps://github.com/RustPython/RustPython/pull/7416/commits/77e6d31fedb09286808c7bf7a669c0f8262582c1
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Widen GC stop-the-world gates from unix-only to all threading buildshttps://github.com/RustPython/RustPython/pull/7416/commits/d2720037c2704d3c5a7bfa3187d33e8c293c47f1
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Detach current thread around blocking _winapi/_overlapped waitshttps://github.com/RustPython/RustPython/pull/7416/commits/e590e3b40a4cb41f24405f55ef6049e59f04f032
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Assert capi refcount on a fresh mortal list instead of the int type objecthttps://github.com/RustPython/RustPython/pull/7416/commits/5e2d09506ee35800f9ce6e5a3de27cba2e753b11
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