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Title: GH-148937: fix for free-threaded GC (RSS based defer) by nascheme · Pull Request #148940 · python/cpython · GitHub

Open Graph Title: GH-148937: fix for free-threaded GC (RSS based defer) by nascheme · Pull Request #148940 · python/cpython

X Title: GH-148937: fix for free-threaded GC (RSS based defer) by nascheme · Pull Request #148940 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: Asking the OS for the process memory usage doesn't work well given how mimalloc works. It does not promptly return memory to the OS and so the memory doesn't drop after cyclic trash is fre...

X Description: Asking the OS for the process memory usage doesn't work well given how mimalloc works. It does not promptly return memory to the OS and so the memory doesn't drop after cyclic tras...

Opengraph URL: https://github.com/python/cpython/pull/148940

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og:image:altAsking the OS for the process memory usage doesn't work well given how mimalloc works. It does not promptly return memory to the OS and so the memory doesn't drop after cyclic trash is fre...
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Inc GC in 3.14t can defer too much, resulting in high memory use #148937https://github.com/python/cpython/issues/148937
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: fix for free-threaded GC (RSS based defer)https://github.com/python/cpython/pull/148940/commits/ad5ed7425599aa5f48d2ce3296e6dc358d4e1d69
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Move gc_should_collect_mem_usage() call.https://github.com/python/cpython/pull/148940/commits/05d50506c42eb3349ca724700e2dabf827b9afb5
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Add blurb.https://github.com/python/cpython/pull/148940/commits/515e4c4b73e05369dbe3d9371e81de1dbc853f69
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Compute mimalloc memory usage based on full pages.https://github.com/python/cpython/pull/148940/commits/7f654e10f3e226678f8fdc1d986f0e42ebb1ca00
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Avoid warning of unused functions.https://github.com/python/cpython/pull/148940/commits/14b9696d31f7ae78a3ac1b9e33cbcc248d3be5d5
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Store full_page_bytes in mi_heap_t.https://github.com/python/cpython/pull/148940/commits/801737fd85a5fa919840fdcbdbb826fa5672b768
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Use _mi_heap_main_get().https://github.com/python/cpython/pull/148940/commits/057f8625f244420b707a09284fab52a938594e9c
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