#!/usr/bin/env perl

use v5.36;

use List::Util qw /pairs pairvalues pairmap/;

##</code><code>##

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                Rate a_pairs_alias a_pairs h_each h_by_key h_for_list h_vals a_pair_vals a_pairmap a_for_list
a_pairs_alias 48.8/s            --     -4%   -67%     -73%       -83%   -90%        -90%      -92%       -94%
a_pairs       51.0/s            4%      --   -66%     -71%       -82%   -90%        -90%      -91%       -94%
h_each         150/s          207%    193%     --     -16%       -47%   -69%        -71%      -74%       -82%
h_by_key       178/s          265%    249%    19%       --       -37%   -64%        -65%      -69%       -78%
h_for_list     284/s          482%    457%    90%      59%         --   -42%        -45%      -51%       -66%
h_vals         490/s          903%    860%   227%     175%        72%     --         -5%      -16%       -41%
a_pair_vals    513/s          951%    906%   243%     188%        81%     5%          --      -12%       -38%
a_pairmap      582/s         1091%   1041%   289%     226%       105%    19%         13%        --       -30%
a_for_list     827/s         1594%   1521%   453%     364%       191%    69%         61%       42%         --

##</code><code>##

$ perl -v | head -2 | tail -1
This is perl 5, version 36, subversion 0 (v5.36.0) built for cygwin-thread-multi

$ uname -a
CYGWIN_NT-10.0 titan 3.2.0(0.340/5/3) 2021-03-29 08:42 x86_64 Cygwin