[Python-Dev] Compact GC Header (original) (raw)

INADA Naoki songofacandy at gmail.com
Tue May 29 09:12:04 EDT 2018

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Hi, all.

I hacked GC module and managed to slim PyGC_Head down from 3 words to 2 words. It passes test suite, while some comments and code cleanup is needed before merge.

• https://bugs.python.org/issue33597
• https://github.com/python/cpython/pull/7043

I want to merge it after 3.7.0rc1 and buildbots are stable, if Antoine or other GC expert accept it.

I estimate it reduces 5% memory usage (RSS) and negligible performance difference. If someone interested in it, please test and benchmark it on GC heavy application.

Regards,

-- INADA Naoki <songofacandy at gmail.com>

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