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The normal sha256sum CLI program in Fedora Linux seems to use these extensions.

On a couple older Intel x86_64 systems without the extension, I get around 300 MiB/s hashing a ~15 MB file.

On a Ryzen 3700u laptop I get around 1250 MiB/s. And I also get around 1380 MiB/s on an an aarch64 ARM vCPU on AWS (t4g instance type).



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