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Mark Shannon

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Memory management in CPython, fast or slow?PyCon US 20262026-05-13
CPython spends one third of runtime on memory management and currently services roughly half of allocations from small-object free lists; there are 32 size…
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How we are making CPython faster. Past, present and future.PyCon US 20232023-04-19
Sums the concrete claim that CPython 3.11 is noticeably faster than 3.10 with measured benchmarks (pyperformance style) and shows the actual changes applied…
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PYCON UK 2022: Saturday Lightning TalksPyCon UK 20222022-09-16
Personal ADHD disclosure and practical coping notes plus a quick checklist for self‑assessment; a city straight‑line walk built from OpenStreetMap boundaries…
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Making CPython Fast Using Trace-based OptimisationsEuroPython 20112011-06-20
An experimental tracing VM called Popeye tracing VM implements a lower-level “spam” instruction set inside CPython, records hot bytecode traces, applies…
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