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Impressive-looking benchmark improvements often result from comparing against a poorly-tuned baseline rather than a genuine advance.
Drawn from what Nelson Elhage said
Subjectbenchmarks
What Nelson Elhage actually said
- Nelson Elhage Software engineer who writes the blog Made of Bugs about performance
It's easy to get impressive-looking results if you're comparing against a poorly-tuned baseline, and that observation turns out to explain a surprising fraction of supposed improvements.
Where this was said
↗Performance of the Python 3.14 tail-call interpreterblog.nelhage.com
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Added to korrents 20 Sept 2026 · How quotes work · Something wrong? Tell us
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