How python-build-standalone gets its speed: Clang, PGO/LTO, BOLT, static linking
charliermarsh · x · 2026-09-11
charliermarsh explains the speed deltas come from the build pipeline: python-build-standalone builds with modern Clang (enabling the tail-calling interpreter), runs PGO and LTO, applies BOLT, and statically links libpython into the executable.
Related event: Astral Benchmarks python-build-standalone as Fastest CPython Distribution(4 posts)→
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