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Re:Show HN: Go version of HighwayHash with optimized assembl... by zuzun on Wednesday January 10, 2018 @07:49AM (#16114538)
All modern hashes are designed for 64-bit architectures and some even rely on recent instruction sets. So a benchmark on an old 32-bit CPU isn't indicative of the performance you'll see on a modern processor, e.g. Metrohash will definitely not be 5x slower than xxHash.
Re:Show HN: Go version of HighwayHash with optimized assembl... by loeg on Wednesday January 10, 2018 @07:32PM (#16120451)
Not sure what you're trying to say.

I'm asking for an apples-to-apples comparison here. Using one figure from a random CPU on github and comparing it to another figure from a different random CPU on github is not an apples to apples comparison.

I don't think anyone claimed xxhash would be 5x faster than metrohash. (Maybe you are getting the 5x number from metrohash's claim that it is 5x faster than siphash?)