Re: add AVX2 support to simd.h
От | Nathan Bossart |
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Тема | Re: add AVX2 support to simd.h |
Дата | |
Msg-id | 20240325152121.GB2662364@nathanxps13 обсуждение исходный текст |
Ответ на | Re: add AVX2 support to simd.h (John Naylor <johncnaylorls@gmail.com>) |
Ответы |
Re: add AVX2 support to simd.h
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Список | pgsql-hackers |
On Mon, Mar 25, 2024 at 10:03:27AM +0700, John Naylor wrote: > Seems pretty good. It'd be good to see the results of 2- vs. > 4-register before committing, because that might lead to some > restructuring, but maybe it won't, and v8 is already an improvement > over HEAD. I tested this the other day [0] (only for x86). The results seemed to indicate that the 4-register approach was still quite a bit better. > /* Process the remaining elements one at a time. */ > > This now does all of them if that path is taken, so "remaining" can be removed. Right, will do. [0] https://postgr.es/m/20240321183823.GA1800896%40nathanxps13 -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
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