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Python 3.12 vs. Python 3.13 – performance testing

37 points

by tosh

1 day ago

| past

| 5 comments

| en.lewoniewski.info

| HN

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serjester

1 day ago

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Not much to talk about - asyncio is 20% faster and everything else is basically the same. Props to the op for doing the benchmark though. Surprising re is 4% slower - I was under the impression python just wraps the c bindings.

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ComputerGuru

1 day ago

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Site is exceeding its traffic allotment. I had to try a few times but I was able to snag a copy for the archives.

https://archive.is/FBDVL

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pama

1 day ago

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It appears that the site is now popular—I’m getting:

Resource Limit Is Reached

The website is temporarily unable to service your request as it exceeded resource limit. Please try again later.

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ComputerGuru

1 day ago

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Cached here

https://news.ycombinator.com/item?id=41872770

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xyst

1 day ago

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Hn hugged after only 6 pts.

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VeejayRampay

1 day ago

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so basically performance doesn't really go up or down, it's the same

that's good news since 3.13 is merely planting the seeds for further improvements, can't wait for 3.14 and 3.15

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BerislavLopac

17 hours ago

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Hopefully there will be no 3.15: https://peps.python.org/pep-2026/

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throw0101d

1 day ago

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The "x" numbers are not quite correct, e.g.:

    2to3 226 ms 217 ms (1.04x faster)

It is not "1.04x" faster, which would mean 104%, or twice as fast / half the time. It is 4% faster.

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mywittyname

1 day ago

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1.04x faster means 4% faster. It's the difference represented as a ratio of the new and original value. 226 / 217 = 1.04

2x would be twice as fast. For example, I used to drink 4 cups of coffee a day, now I drink 8 cups. You could say I 8 / 4 = 2x(ed) my coffee intake.

A "10x" developer is one who develops at 10 times the pace of a single normal developer.

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cb321

1 day ago

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Language is, of course, an agreed upon convention, but everyone I know who says "2x faster" has seemed to mean "takes half the time". The "x" here is intended to be short for "multiplication" to indicate a time ratio, not short for "extra".

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baggy_trough

1 day ago

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It is literally 1.04x faster.