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Benchmark any vs grep
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#!/usr/bin/env perl | |
use strict; | |
use warnings; | |
use Benchmark; | |
use List::Util 'any'; | |
use match::simple::XS; | |
use match::simple qw(match); | |
my $count = shift || 2_000_000; | |
my $needle = 111; | |
my @haystack = (0 .. 999); | |
timethese($count, { | |
grep_it => \&grep_it, | |
any_it => \&any_it, | |
match_it => \&match_it, | |
}); | |
sub grep_it { | |
my $x = grep { $needle == $_ } @haystack; | |
} | |
sub any_it { | |
my $x = any { $needle == $_ } @haystack; | |
} | |
sub match_it { | |
my $x = match $needle, \@haystack; | |
} |
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Benchmark: timing 2000000 iterations of any_it, grep_it, match_it... | |
any_it: 4 wallclock secs ( 5.27 usr + 0.00 sys = 5.27 CPU) @ 379506.64/s (n=2000000) | |
grep_it: 36 wallclock secs (35.41 usr + 0.00 sys = 35.41 CPU) @ 56481.22/s (n=2000000) | |
match_it: 3 wallclock secs ( 2.95 usr + 0.00 sys = 2.95 CPU) @ 677966.10/s (n=2000000) |
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