Re^2: Reminder to self: must use Memoize more often!

[tobyink]

On my machine at least, fib6 is 4% faster than fib5:

my @fib6_cache;
sub fib6 {
    my $n = shift;
    $fib6_cache[ $n ] //= $n < 2 ? $n
        : ( $fib6_cache[ $n-1 ] //= fib6($n-1) )
        + ( $fib6_cache[ $n-2 ] //= fib6($n-2) );
}

[BrowserUk]

Fair enough. I guess we're into Benchmark vagaries. (T'was a bit unnecessary given the 1000% already gained :)