I was going to disagree, but continue reading to see why I'm not. My code is below, have I done something wrong? 
#!/usr/bin/perl

use Benchmark;

sub double {
    $teststring = '';
    if( $teststring ne "" ) {
        return 1;
    } else {
        return 0;
    }
}

sub single {
    $teststring = '';
    if( $teststring ne '' ) {
        return 1;
    } else {
        return 0;
    }
}

timethese( 1000000, { double => 'double( )',
                  single => 'single( )' } );

[download]
Which gave these results on 3 consecutive trials 
Benchmark: timing 1000000 iterations of double, single...
    double:  3 wallclock secs ( 2.14 usr +  0.00 sys =  2.14 CPU)
    single:  1 wallclock secs ( 1.86 usr +  0.00 sys =  1.86 CPU)

Benchmark: timing 1000000 iterations of double, single...
    double:  1 wallclock secs ( 1.86 usr +  0.00 sys =  1.86 CPU)
    single:  2 wallclock secs ( 1.92 usr +  0.00 sys =  1.92 CPU)

Benchmark: timing 1000000 iterations of double, single...
    double:  1 wallclock secs ( 1.89 usr +  0.00 sys =  1.89 CPU)
    single:  1 wallclock secs ( 1.86 usr +  0.00 sys =  1.86 CPU)

[download]
The way I understand the Benchmark module, system load at the time of benchmarking doesn't
influence the numbers. Is that statement correct? Does anybody know what's going on?

In reply to Re: (tye)Re: A better non-existant string... by spaz
in thread A better non-existant string... by lzcd

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