Re: [RFC PATCH] Btrfs: add sha256 checksum option

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On Mon, Dec 1, 2014 at 3:05 PM, Alex Elsayed <eternaleye@xxxxxxxxx> wrote:
> Incidentally, you can be 'skeptical' all you like - per Austin's message
> upthread, he was testing the Crypto API. Thus, skeptical as you may be, hard
> evidence shows that SHA-1 was equal to or faster than CRC32, which is
> unequivocally simpler and faster than CityHash (though CityHash comes
> close).
>
> And the CPUs in question are *not* particularly rare - Intel since Sandy
> Bridge or so, the majority of SPARC systems, a goodly number of ARM systems
> via coprocessors...

You can make convoluted, incorrect claims all you like, but the fact
is that SHA-1 is not as fast as Spooky2 or CityHash128 on x64 Intel
CPUs, and Murmur3 is faster on ARM systems. And it is not even close.
Your claims are absurd.
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