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: / usr / share / doc / perl-Digest-1.17 /

Filename : digest-bench

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#!/usr/bin/perl -w

use strict;
die unless @ARGV;

my($mod, @args) = @ARGV;

eval "require $mod"; die $@ if $@;

$a = substr(join("", "a" .. "z",) x 800, 0, 8 * 1024);
my $count = 4*1024;

use Time::HiRes qw(time);

my $before = time;
my $ctx = $mod->new(@args);
for (1 .. $count) {
    $ctx->add($a);
}
print $ctx->hexdigest, "\n";

my $sec = time - $before;
my $bytes = length($a) * $count;

print "$bytes/$sec\n";

my $vers = do { no strict 'refs'; ${$mod . '::VERSION'} };
printf "$mod $vers\t%.2f MB/s\n", $bytes/(1024*1024*$sec)