This is an C instrumentation library to profile and measure performance of C codes.

The usage is very simple. The example shows the basic use:

#include "instrumentation.h"
#include <stdint.h>
#include <stdlib.h>

#define N 1000000

int func_1(void)
{
	INST_START

	int i, j;
	for (i = 0; i < N; ++i)
		j =+ i;

	INST_END

	return j;
}

int main(void)
{
	int sol;

	sol = func_1();
	sol = func_1();
	sol = func_1();

	INST_PRINT
}

The macros INST_START and INST_END should be placed at the beginning and end of the function where the elapsed time want to be measured and INST_PRINT should be located where the information is going to be printed to stdout.

After compiling and run the code the output should be approximately:

------------------------------------------------------------
Instrument
------------------------------------------------------------
Function                Time            Calls           Mean            Stdev[%]
func_1           :      0.012215        3               0.004072        0.025676

More simple and easy to understand examples of the usage of this library can be found in the test folder.