#!/usr/bin/env perl 
use strict;
use warnings;
use Benchmark 'cmpthese';

my $size = 50_000_000;
my @big = (rand () x $size);

cmpthese (10, {
    'interp' => 'interp ()',
    'Eily'   => 'eily ()',
    'OFS'    => 'ofs ()',
});
exit;

sub interp {
    open FH, '>', 'mergedlogs.txt' or die "can't open mergedlogs.txt: $!";
    local $| = 0;
    foreach (@big) { print FH "$_\n"; }
    close FH;
}

sub eily {
    my $output_file = "mergedlogs.txt";
    open my $output_fh, ">", $output_file or die "Can't open $output_file: $!";
    local $| = 0;
    local $\ = "\n";
    foreach (@big) { print $output_fh $_; }
    close $output_fh;
}

sub ofs {
    my $output_file = "mergedlogs.txt";
    open my $output_fh, ">", $output_file or die "Can't open $output_file: $!";
    local $| = 0;
    local $\ = "\n";
    local $, = "\n";
    print $output_fh @big;
    close $output_fh;
}