A little Benchmark about the binary and the multiplication operator in Perl:
|
1 2 3 4 5 6 7 8 9 10 11 12 |
#!/usr/bin/perl use strict; use Benchmark qw(:all) ; my $a = 100; my $x = 0; print "".($a * 4)."\n"; print "".($a << 2)."\n"; cmpthese(-2, { 'mul' => sub {$x = $a * 4;}, 'bin' => sub {$x = $a << 2;}, }); |
Our result:
|
1 2 3 |
Rate bin mul bin 12728559/s -- -52% mul 26530177/s 108% -- |
We see its better to avoid the binary options.
Yes! Finally someone writes about books.
Pretty! This was an extremely wonderful post.
Thanks for supplying these details.
Right here is the perfect website for anyone who wishes to find out about this topic.
You realize so much its almost hard to argue
with you (not that I actually will need toHaHa).
You certainly put a brand new spin on a subject that’s been written about for many years.
Wonderful stuff, just excellent!