Re: timing a function

[Mark Zealey <mark@zealos.org>]

On Sat, Dec 08, 2001 at 03:41:23AM -0500, D Cleveland wrote:

> Im looking to check the relative time it takes to call a function and then
> return.  does anyone know how i can do this easily?  heres what im hoping
> i can do...
> 
> int len;
> 
> len = check_timer();
> function_to_time();
> len = check_timer() - len;
> 
> and have this return some number telling me the relative time to execute
> the function.  if this isnt clear let me know and ill clarify.  thank you
> in advance!

try rdtscll() (With long long's). It measures cycles taken.

-- 

Mark Zealey (aka JALH on irc.openprojects.net: #zealos and many more)
mark@zealos.org
mark@itsolve.co.uk

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