Python 3.14 Performance Looking Good In Benchmarks

Written by Michael Larabel in Software on 10 October 2025 at 09:27 AM EDT. Page 3 of 3. 13 Comments.

PyPerformance benchmark with settings of Benchmark: xml_etree. Python 3.12 was the fastest.

PyPerformance benchmark with settings of Benchmark: pathlib. Python 3.13 was the fastest.

PyPerformance benchmark with settings of Benchmark: raytrace. Python 3.14 was the fastest.

In some of the Python benchmarks there wasn't any uplift over Python 3.13 but at least not regressing there.

PyPerformance benchmark with settings of Benchmark: gc_collect. Python 3.12 was the fastest.

The one area where the Python 3.14 performance was coming in slower was in the garbage collection "gc_collect" test.

PyPerformance benchmark with settings of Benchmark: python_startup. Python 3.12 was the fastest.

The Python start-up time has also been trending higher with more features and functionality being tacked onto Python3.

PyPerformance benchmark with settings of Benchmark: json_loads. Python 3.12 was the fastest.

PyPerformance benchmark with settings of Benchmark: crypto_pyaes. Python 3.14 was the fastest.

PyPerformance benchmark with settings of Benchmark: regex_compile. Python 3.14 was the fastest.

PyPerformance benchmark with settings of Benchmark: asyncio_tcp_ssl. Python 3.14 was the fastest.

PyPerformance benchmark with settings of Benchmark: django_template. Python 3.12 was the fastest.

Overall, Python 3.14 is performing well on Linux in this default/clean comparison and running well on Linux. I've run into no issues with Python 3.14 with my testing thus far from either the source based builds or early testing on Fedora 43. Kudos to all those involved.

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