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Intel Begins Landing GFNI Support In GCC 8

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  • Intel Begins Landing GFNI Support In GCC 8

    Phoronix: Intel Begins Landing GFNI Support In GCC 8

    Intel compiler engineers have begun landing "GFNI" support within the GNU Compiler Collection as one of the new ISA extensions not expected until the Icelake processor debut...

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite

  • #2
    So, what's the difference with AES-NI? GFNI sounds like it "just" does the GF[2^8] s-box?

    EDIT: looks like it is, (search for GF2P8AFFINEINVQB).

    It is however an AVX-512 instruction, so it does it on a 64-vector. Could make AES a lot faster on Intel chips then, maybe they'll beat Ryzen again now in AES.
    Last edited by rubdos; 20 October 2017, 06:17 AM.


    • #3
      rubdos Maybe it's usable for other encryption algorithms as well, not just AES.