Sorry, I pressed a short-cut key and it sent accidentally, finished 
example:-

>> i would like to qualify the speed of an algorithm on a desktop PC.  I 
>> know
>> that a mips calculation is not really accurate but i just require 
>> something
>> that will give a basic indication of speed so i can estimate and work on
>> reducing the algorithm complexity in quite a formal.
>>
>> thanks

 Windows has a high speed counter, here's the msdn reference:

 http://msdn.microsoft.com/en-us/library/ms644904(VS.85).aspx

 I beleive your supposed to get the Hz of your hardware once with 
QueryPerformanceFrequency, then use QueryPerformanceCounter to grab the 
counter value.

 Something like:-

 Done once:
                      __int64 freq64;
                     QueryPerformanceFrequency((LARGE_INTEGER*)&freq64);
                     freq = 1000.0f / (double)freq64;

Get time:
                  QueryPerformanceCounter((LARGE_INTEGER*)&time64;
                    return (time64*freq); // In milliseconds.







 

"rich_158" <eecoding@hotmail.com> wrote in message 
news:JZGdnQQfNLOgK8XVnZ2dnUVZ_t_inZ2d@giganews.com...
> hi
>
> i would like to qualify the speed of an algorithm on a desktop PC.  I know
> that a mips calculation is not really accurate but i just require 
> something
> that will give a basic indication of speed so i can estimate and work on
> reducing the algorithm complexity in quite a formal.
>
> thanks

Windows has a high speed counter, here's the msdn reference:

http://msdn.microsoft.com/en-us/library/ms644904(VS.85).aspx

I beleive your supposed to get the Hz of your hardware with 
QueryPerformanceFrequency, then use QueryPerformanceCounter to grab the 
counter value.
Seomthing like:-

Done once:
                     QueryPerformanceFrequency((LARGE_INTEGER*)&freq64);
                     freq = 1000.0f / (double)freq64;

Counter:

On Jun 18, 12:16 pm, "rich_158" <eecod...@hotmail.com> wrote:
> hi
>
> i would like to qualify the speed of an algorithm on a desktop PC.  I know
> that a mips calculation is not really accurate but i just require something
> that will give a basic indication of speed so i can estimate and work on
> reducing the algorithm complexity in quite a formal.
>
> thanks

the following code can be used to calculate cycles and time


#include <time.h>

        main()
{

	clock_t s_time, e_time;
	double t_time;


	s_time=clock();
	Function();
	e_time=clock();

	size =
	t_time=(e_time-s_time)/(double)(CLOCKS_PER_SEC);
	printf("Time taken by Function ---> %4.5f seconds\n", t_time);

}

hi

i would like to qualify the speed of an algorithm on a desktop PC.  I know
that a mips calculation is not really accurate but i just require something
that will give a basic indication of speed so i can estimate and work on
reducing the algorithm complexity in quite a formal.

thanks