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Old 02-26-2007, 08:04 PM   #1
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Determine program's runtime

Is there any way to determine the time it took a program to execute?

I am trying to test a few methods of doing a calculation, and I'd like to find out which is the fastest.
Old 02-26-2007, 08:14 PM   #2
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Prefix execution of the program with "time".
Old 02-26-2007, 08:26 PM   #3
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time, gprof and gcov.

gprof needs profiling (gcc -pg)

gcov needs "-g -fprofile-arcs -ftest-coverage"

Have fun!
Old 03-14-2007, 02:02 AM   #4
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Thumbs up hey did u get the solution

Hi Dear friend...
I want to write a program to find the TOTAL PROGRAM EXECUTION TIME in C.
Note: While executing the program SYSTEM TIME willl change... Even though it has to give the correct out put....
So please send me the way u have done.

Please reply..back.

Thanks & regards
Old 03-14-2007, 10:51 AM   #5
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Originally Posted by Matir
Prefix execution of the program with "time".

hi.. friend

can u explain me in detail by taking an example with small C code
Old 03-14-2007, 02:42 PM   #6
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In C ? Well, it's not as easy as you might think. Take a look at the source code for the 'time' program:

So, basically you want to re-invent the wheel. 'time' is written in C and it does what you are asking .... what more do you want.

Last edited by H_TeXMeX_H; 03-14-2007 at 02:43 PM.


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