On 25. 11. 19 22:33, Ben Cotton wrote:
https://fedoraproject.org/wiki/Changes/PythonNoSemanticInterpositionSpeedup
Simplified version of another change proposal|This change was
originally proposed for [[Releases/32|Fedora 32]] as
[[Changes/PythonStaticSpeedup]], however based on
[https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/NWPVQSKVWDKA75PDEIJNJIFL5C5SJXB2/
community feedback], it has been significantly reduced.
== Summary ==
We add the <code>-fno-semantic-interposition</code> compiler/linker
flag when building Python interpreters, as it provides significant
performance improvement, up to 27% depending on the workload. Users
will no longer be able to use LD_PRELOAD to override a symbol from
libpython, which we consider a good trade off for the speedup.
I just wanted to share this benchmark on Phoronix:
https://www.phoronix.com/scan.php?page=article&item=fedora-32-benchmarks&num=5
It looks really good. Thanks again David, Jan.
Maybe we should share it on social media?
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
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