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crc32 could be 14x faster #70

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nigeltao opened this issue Mar 16, 2019 · 2 comments
Open

crc32 could be 14x faster #70

nigeltao opened this issue Mar 16, 2019 · 2 comments

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@nigeltao
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src/crc.cpp is a very simple CRC-32 implementation. SIMD implementations can be more than 14x faster.

See https://fastcompression.blogspot.com/2019/03/presenting-xxh3.html?showComment=1552693962180#c8263190774970267162
@nigeltao
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Actually, 14x should probably be 41x. See https://fastcompression.blogspot.com/2019/03/presenting-xxh3.html?showComment=1552696407071#c3490092340461170735

@nigeltao
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nigeltao commented Apr 3, 2021

C/C++ x86 SIMD (SSE4.2 + PCLMUL) CRC-32 implementation:
nigeltao@9f561bb

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