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A comment on A Python Interpreter Written in Rust. Parent comment

Re:A Python Interpreter Written in Rust by pdpi on Saturday February 02, 2019 @02:49PM (#19065224)
Even if RustPython is faster at the architectural level (which it probably does, CPython is infamously slow), CPython has the advantage of a mature codebase and two and a half decades of accumulated performance tuning.
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Re:A Python Interpreter Written in Rust by coldtea on Saturday February 02, 2019 @03:10PM (#19065370)
>and two and a half decades of accumulated performance tuning.

Or two and a half decades of performance neglect.

I've read about things like dicts, sort and the like getting faster implementations, but I've never seen a big effort to make CPython faster in general. In fact the first versions of 3.x were even allowed to regress to slower than 2.x.

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Re:A Python Interpreter Written in Rust by FartyMcFarter on Saturday February 02, 2019 @04:07PM (#19065719)
This is certainly the case when it comes to startup time (an important thing in a scripting language). On my linux system, python2 starts in about 10ms, python3 takes 20-25 ms.
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