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Title: gh-132917: Check resident set size (RSS) before GC trigger. by nascheme · Pull Request #133399 · python/cpython · GitHub

Open Graph Title: gh-132917: Check resident set size (RSS) before GC trigger. by nascheme · Pull Request #133399 · python/cpython

X Title: gh-132917: Check resident set size (RSS) before GC trigger. by nascheme · Pull Request #133399 · python/cpython

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

Open Graph Description: This greatly reduces the time to run the script in GH-132917. For the default build, I get 0.19 seconds to run. For free-threaded build main branch, 1.9 seconds. With this PR applied, 0.2 second...

X Description: This greatly reduces the time to run the script in GH-132917. For the default build, I get 0.19 seconds to run. For free-threaded build main branch, 1.9 seconds. With this PR applied, 0.2 second...

Opengraph URL: https://github.com/python/cpython/pull/133399

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Merge 'origin/main' into gc_check_rsshttps://github.com/python/cpython/pull/133399/commits/31220cb81511599168eceabb8f9b58ea451968f7
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Use atomic load for deferred_count.https://github.com/python/cpython/pull/133399/commits/452cd0851260b01030e6e72418c72b576f0a0fa2
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Merge 'origin/main' into gc_check_rsshttps://github.com/python/cpython/pull/133399/commits/aabe31deb9346eb18517caba5bd73f9d5acaf1f3
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: Check resident set size (RSS) before GC trigger. (https://github.com/Pranjal095/cpython/commit/020d8a8c0696fb6243941f7aa2fc94735f8057bc
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…thongh-133399https://github.com/python/cpython/pull/133399
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Oct 15, 2025 https://github.com/python/cpython/pull/133399#ref-issue-3505571273
Potentially serious regression in garbage collector performance in Python 3.14 #139951 https://github.com/python/cpython/issues/139951
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