Python 3.15 JIT benchmarks

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“The speedups for JIT builds versus no JIT builds range from roughly 20% slowdown to over 100% speedup (ignoring the unpack_sequence microbenchmark) on x86-64 Linux and AArch64 macOS systems.” (Quote from preview release notes for 3.15)

Where can I find these results? I’m curious about which benchmarks show significant speedup.

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I have found :slight_smile: free-threading-benchmarking/results/bm-20251214-3.15.0a2+-6cddf04-JIT/bm-20251214-vultr-x86_64-python-6cddf04344a1e8ca9df5-3.15.0a2+-6cddf04-vs-base.svg at main · facebookexperimental/free-threading-benchmarking · GitHub

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@savannahostrowski set up https://doesjitgobrrr.com which does benchmarks in her home lab (she’s one of the core developers working on the JIS.)

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Normally, yes, though I’m having an internet outage right now (and this is self-hosted) :grinning_face:. Should hopefully be back up later today!

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