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Validark
642 days ago
CRC32 is the same speed as an integer multiply, going all the way back to Nehalem (2008). 3 cycles latency, and you can start a new one each cycle (or more than one, on Zen 5).
1 comments
hooli42
642 days ago
Sure, in the same way SIMD instructions get a linear speedup in theory.
If you Google the words "CRC32 is slow", you can see hundreds of people complaining about this.
link
If you Google the words "CRC32 is slow", you can see hundreds of people complaining about this.