From: Robert Klemme <bob.news@...>
Date: 2005-12-21T01:17:47+09:00
Subject: Re: ruby -r profile gives wrong percentage?

javachallenge@gmail.com wrote:
> I am using Windows, and I was testing the profiler with the simple
> sieve.rb program.
>
> I may not have a good understanding of Ruby's profiler but It seems
> that it gives me wrong percentages... I guess it is due to the
> overhead of the profiler while the process is not too much cpu bound.
> However if it shows wrong percentages, to me it's still a bug.
>
> So according to the output below, 100% of the time is gone with
> Profiler__.start_profile, while 51.61% is gone with Numeric#step. All
> this totaling 151.61%!
> Am I missing something?

Yes.  Some figures are cumulative.  This confused me in the beginning,
too.  I guess the rest of the confusion is caused by rounding errors -
your figures are quite smallish.  HTH

> Thanks in advance. I am such a newbie :-) JC

We all were once. :-)

Kind regards

    robert