Jeffrey Walton <noloa...@gmail.com> writes: > On Mon, Mar 12, 2018 at 2:40 PM, Niels Möller <ni...@lysator.liu.se> wrote: >> ni...@lysator.liu.se (Niels Möller) writes: >> ... >> >> Now wired up for fat builds, changes pushed to the same branch. > > Looks good on a Celeron J3455 (https://www.amazon.com/dp/B01LYCDG4H): > > Without --enable-fat > > md2 update 6.88 > md4 update 570.47 > md5 update 383.59 > openssl md5 update 444.94 > sha1 update 238.53 > openssl sha1 update 1323.53 > sha224 update 110.07 > sha256 update 110.25 > sha384 update 173.90 > sha512 update 174.35 > sha512-224 update 174.30 > sha512-256 update 174.08 > > With --enable-fat > > md2 update 6.89 > md4 update 569.68 > md5 update 382.82 > openssl md5 update 444.76 > sha1 update 1192.25 > openssl sha1 update 1324.47 > sha224 update 494.33 > sha256 update 495.22 > sha384 update 173.87 > sha512 update 174.33
So you get 5 times speedup of sha1 and 4.5 times for sha256. Nice! On gcc67 (AMD Ryzen 5 2400G), I measure 3 times and 4.8 times speedup, respectively. Now, I think there are opportunities for improvements also for sha1 and sha256 without sha_ni, but that's a more difficult project, to carefully take data dependencies into account, and deal with hard-to-predict x86 scheduling. Regards, /Niels -- Niels Möller. PGP-encrypted email is preferred. Keyid 368C6677. Internet email is subject to wholesale government surveillance. _______________________________________________ nettle-bugs mailing list nettle-bugs@lists.lysator.liu.se http://lists.lysator.liu.se/mailman/listinfo/nettle-bugs
