Created
April 10, 2023 17:34
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hash-speedtest
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| { pkgs ? import <nixpkgs> {} }: | |
| let | |
| libkcapi = pkgs.stdenv.mkDerivation { | |
| pname = "libkcapi"; | |
| version = "a05976bef9c4d4dbe48323e8cdbe2c886f35b9ff"; | |
| src = pkgs.fetchFromGitHub { | |
| repo = "libkcapi"; | |
| owner = "smuellerDD"; | |
| rev = "a05976bef9c4d4dbe48323e8cdbe2c886f35b9ff"; | |
| sha256 = "sha256-TjTER1AiPyILOx+oyZmt0WSPxEMo0oP+dAYZK6O3BM4="; | |
| }; | |
| nativeBuildInputs = [ pkgs.autoreconfHook ]; | |
| configureFlags = [ "--enable-kcapi-hasher" ]; | |
| }; | |
| btrfs-progs = pkgs.btrfs-progs.overrideAttrs (old: { | |
| buildInputs = old.buildInputs ++ [ libkcapi ]; | |
| configureFlags = old.configureFlags ++ [ "--with-crypto=libkcapi" ]; | |
| postBuild = (old.postBuild or "") + '' | |
| make hash-speedtest | |
| ''; | |
| postInstall = (old.postInstall or "") + '' | |
| cp hash-speedtest $out/bin | |
| ''; | |
| }); | |
| in btrfs-progs |
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| Block size: 4096 | |
| Iterations: 100000 | |
| Implementation: libkcapi | |
| Units: CPU cycles | |
| NULL-NOP: cycles: 23156060, cycles/i 231 | |
| NULL-MEMCPY: cycles: 48894774, cycles/i 488, 20672.836 MiB/s | |
| CRC32C: cycles: 152103176, cycles/i 1521, 6645.493 MiB/s | |
| XXHASH: cycles: 110446886, cycles/i 1104, 9151.921 MiB/s | |
| SHA256: cycles: 5455381428, cycles/i 54553, 185.286 MiB/s | |
| BLAKE2: cycles: 2412114586, cycles/i 24121, 419.054 MiB/s | |
| Block size: 4096 | |
| Iterations: 100000 | |
| Implementation: builtin | |
| Units: CPU cycles | |
| NULL-NOP: cycles: 25276646, cycles/i 252 | |
| NULL-MEMCPY: cycles: 49015106, cycles/i 490, 20622.684 MiB/s | |
| CRC32C: cycles: 152226114, cycles/i 1522, 6640.306 MiB/s | |
| XXHASH: cycles: 110294130, cycles/i 1102, 9164.827 MiB/s | |
| SHA256: cycles: 8371201420, cycles/i 83712, 120.751 MiB/s | |
| BLAKE2: cycles: 1565432874, cycles/i 15654, 645.718 MiB/s |
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