Re: Improve CRC32C performance on SSE4.2

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От John Naylor
Тема Re: Improve CRC32C performance on SSE4.2
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Msg-id CANWCAZZM=GZesOZARs1hPPFuu9p9UNOtnyn0=4KQzups9Mek4w@mail.gmail.com
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Ответ на RE: Improve CRC32C performance on SSE4.2  ("Devulapalli, Raghuveer" <raghuveer.devulapalli@intel.com>)
Ответы RE: Improve CRC32C performance on SSE4.2
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On Wed, Mar 12, 2025 at 3:57 AM Devulapalli, Raghuveer
<raghuveer.devulapalli@intel.com> wrote:
>
> > I've gone ahead and added the generated AVX-512 algorithm in v14-0005

> I'm a little confused. Why is v14 missing the earlier versions of pclmul implementation that works without avx-512?

As I mentioned upthread, the 128-bit implementation regresses on Zen 2
up to at least 256 bytes.

--
John Naylor
Amazon Web Services



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