gh-100227: Only Use deepfreeze for the Main Interpreter #103794
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ericsnowcurrently requested review from brettcannon, encukou, ncoghlan and warsaw as code owners ericsnowcurrently removed request for brettcannon, encukou, ncoghlan and warsaw 
carljm added a commit to carljm/cpython that referenced this pull request Apr 24, 2023
* main: pythongh-100227: Only Use deepfreeze for the Main Interpreter (pythongh-103794) pythongh-103492: Clarify SyntaxWarning with literal comparison (python#103493) pythongh-101100: Fix Sphinx warnings in `argparse` module (python#103289)
carljm added a commit to carljm/cpython that referenced this pull request Apr 24, 2023
* superopt: pythongh-100227: Only Use deepfreeze for the Main Interpreter (pythongh-103794) pythongh-103492: Clarify SyntaxWarning with literal comparison (python#103493) pythongh-101100: Fix Sphinx warnings in `argparse` module (python#103289)
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Deep-frozen code objects are cannot be shared (currently) by interpreters, due to how adaptive specialization can modify the bytecodes. We work around this by only using the deep-frozen objects in the main interpreter. This does incur a performance penalty for subinterpreters, which we may be able to resolve later.