[Python-Dev] Benchmarks why we need PEP 576/579/580 (original) (raw)

Guido van Rossum guido at python.org
Sat Jul 21 16:46:21 EDT 2018

Given the cost of a mistake here I recommend a higher standard. But in the end it’s no longer my decision.

On Sat, Jul 21, 2018 at 11:18 AM Jeroen Demeyer <J.Demeyer at ugent.be> wrote:

On 2018-07-21 19:55, Guido van Rossum wrote: > I don’t think we can safely assume Python 3.7 has the same performance, > actually. A lot has changed. > I'm not denying that some things have changed. Rather, I claim that those changes wouldn't invalidate the benchmarks. > I am comparing calls through tpcall (A) versus optimized call paths (B). I only need to assume that the speed improvements to (A) between 2.7 and 3.7 are not bigger than the speed improvements to (B). > Most optimizations which have been done in Python 3.x target (B). In fact, I'm not aware of any optimization to (A) apart from maybe some minor code improvements. So I think it's a relatively safe assumption that the speed difference between (A) and (B) did not decrease from 2.7 to 3.7. >> Jeroen. _________________________ Python-Dev mailing list Python-Dev at python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/guido%40python.org

--Guido (mobile) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20180721/cf21017b/attachment.html>

More information about the Python-Dev mailing list