Reflections on 2 years of CPython’s JIT Compiler: The good, the bad, the ugly
Reflections on 2 years of CPython’s JIT Compiler: The good, the bad, the ugly 5 July 2025 This blog post includes my honest opinions on the CPython JIT. What I think we did well, what I think we could have done better. I’ll also do some brief qualititative analysis. I’ve been working on CPython’s JIT compiler since before the very start. I don’t know how long that is at this point … 2.5, maybe alm
__pycache__ とは何か？(関連してPythonでのJIT Compilerについて)
前提 本記事のすべての内容はCpython実装を元にしています。 python実行時に出てくる __pycache__とは何か？ Pythonが勝手に作成するCacheディレクトリのことで、中には*.pycファイルが入っている。 その目的は名前からしてCacheファイルを想像させるため、何かの結果物をCacheにし、高速化を意図しているのではないかということが想像できる。 その実態をこれから先で掘り下げていく。 *.pyc はどのように作られるのか？ それには、Pythonがどう起動するかを知る必要がある まず、python main.pyを実行すると、我々が書いたCodeが py_compile[1] によってpycというファイルに変換される。それを、Python Interpreterが読み取り、順番に実行していく。 *.pyc の中身は何か？ Cacheファイルであり、人が読むことを
PEP 744 – JIT Compilation | peps.python.org
PEP 744 – JIT Compilation Author: Brandt Bucher <brandt at python.org>, Savannah Ostrowski <savannah at python.org> Discussions-To: Discourse thread Status: Draft Type: Informational Created: 11-Apr-2024 Python-Version: 3.13 Post-History: 11-Apr-2024 Table of Contents Abstract Motivation Rationale Specification Support Backwards Compatibility Debugging Security Implications Apple Silicon How to Te
Python 3.13 gets a JIT
Happy New Year everyone! In late December 2023 (Christmas Day to be precise), CPython core developer Brandt Bucher submitted a little pull-request to the Python 3.13 branch adding a JIT compiler. This change, once accepted would be one of the biggest changes to the CPython Interpreter since the Specializing Adaptive Interpreter added in Python 3.11 (which was also from Brandt along with Mark Shann
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Tracing JITs in the real world @ CPython Core Dev Sprint
Finding Simple Rewrite Rules for the JIT with Z3
GitHub - jakeret/hope: HOPE: A Python Just-In-Time compiler for astrophysical computations
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