Message 408116 - Python tracker

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Author	kj
Recipients	Dennis Sweeney, kj, mark.dickinson, rhettinger
Date	2021-12-09.13:12:12
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1639055532.68.0.336433919684.issue46020@roundup.psfhosted.org>
In-reply-to

Content
I'm not sure about the original 10:1 difference in 3.10, but in 3.11, the 2:1 difference might be due to the PEP 659 machinery optimizing for int * int, and float * float cases (see BINARY_OP_MULTIPLY_INT and BINARY_OP_MULTIPLY_FLOAT in ceval). Last I recall, these were slightly faster than their unspecialized counterparts as they have less overhead in C function calls. Meanwhile, none of the power operations are optimized via PEP 659 machinery at the moment.

I'm not sure about the original 10:1 difference in 3.10, but in 3.11, the 2:1 difference might be due to the PEP 659 machinery optimizing for int * int, and float * float cases (see BINARY_OP_MULTIPLY_INT and BINARY_OP_MULTIPLY_FLOAT in ceval).

Last I recall, these were slightly faster than their unspecialized counterparts as they have less overhead in C function calls. Meanwhile, none of the power operations are optimized via PEP 659 machinery at the moment.

History
Date	User	Action	Args
2021-12-09 13:12:12	kj	set	recipients: + kj, rhettinger, mark.dickinson, Dennis Sweeney
2021-12-09 13:12:12	kj	set	messageid: <1639055532.68.0.336433919684.issue46020@roundup.psfhosted.org>
2021-12-09 13:12:12	kj	link	issue46020 messages
2021-12-09 13:12:12	kj	create