Re:Musings on Tracing in PyPy
by cfbolztereick on Friday January 10, 2025 @02:18PM
(#42659006)
And a significant chunk of these important extension libraries are supported in pypy using the emulated C-extension api (cpyext)
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Right, the performance cost of cpyext is what we're contrasting with ctypes-like approaches like LuaJIT's FFI in this thread. In https://news.ycombinator.com/item?id=42656395 Antonio Cuni linked the standard explanation of why cpyext is so slow and also HPy, which I'm embarrassed to say I didn't know about.