Hi, Monks

I'm trying to measure to different programs and I came across to some odd results when using Benchmarks, here's the code and the results

use Time::HiRes qw(time); 
use Benchmark qw(:hireswallclock cmpthese); 

cmpthese(5, { 
    a => sub { sleep 4 }, 
    b => sub {sleep 6}
});'

#            (warning: too few iterations for a reliable count)
#            (warning: too few iterations for a reliable count)
#                Rate  a  b
#a 5000000000000000/s -- 0%
#b 5000000000000000/s 0% --
[download]

What seems to be very strange is:

• Rate 5000000000000000/s? Both have a over one second sleep so the rates should be around 0.25/s and 0.16/s.
• One subroutine is 50% slower than the other and still show same values. Even more based on the output the slower sub seems to be the winner

I know I may be doing something wrong, but I dont know why

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.